47927929 has 27 divisors (see below), whose sum is σ = 59669253. Its totient is φ = 38381112.

The previous prime is 47927909. The next prime is 47927951. The reversal of 47927929 is 92972974.

It is a happy number.

The square root of 47927929 is 6923.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 47927929 - 2⁵ = 47927897 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is not an unprimeable number, because it can be changed into a prime (47927909) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 1114582 + ... + 1114624.

Almost surely, 2^47927929 is an apocalyptic number.

47927929 is a gapful number since it is divisible by the number (49) formed by its first and last digit.

47927929 is the 6923-rd square number.

47927929 is the 3462-nd centered octagonal number.

It is an amenable number.

47927929 is a deficient number, since it is larger than the sum of its proper divisors (11741324).

47927929 is an equidigital number, since it uses as much as digits as its factorization.

47927929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146 (or 73 counting only the distinct ones).

The product of its digits is 571536, while the sum is 49.

The cubic root of 47927929 is about 363.2421362075.

Multiplying 47927929 by its sum of digits (49), we get a square (2348468521 = 48461²).

47927929 divided by its sum of digits (49) gives a square (978121 = 989²).

Multiplying 47927929 by its product of digits (571536), we get a square (27392536828944 = 5233788²).

It can be divided in two parts, 4792 and 7929, that added together give a palindrome (12721).

The spelling of 47927929 in words is "forty-seven million, nine hundred twenty-seven thousand, nine hundred twenty-nine".