47989829 has 4 divisors (see below), whose sum is σ = 49537920. Its totient is φ = 46441740.

The previous prime is 47989819. The next prime is 47989883. The reversal of 47989829 is 92898974.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 47989829 - 2⁴ = 47989813 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47989819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 773999 + ... + 774060.

It is an arithmetic number, because the mean of its divisors is an integer number (12384480).

Almost surely, 2^47989829 is an apocalyptic number.

It is an amenable number.

47989829 is a deficient number, since it is larger than the sum of its proper divisors (1548091).

47989829 is a wasteful number, since it uses less digits than its factorization.

47989829 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1548090.

The product of its digits is 2612736, while the sum is 56.

The square root of 47989829 is about 6927.4691626885. The cubic root of 47989829 is about 363.3984474010.

The spelling of 47989829 in words is "forty-seven million, nine hundred eighty-nine thousand, eight hundred twenty-nine".