47449769 has 4 divisors (see below), whose sum is σ = 48553296. Its totient is φ = 46346244.

The previous prime is 47449763. The next prime is 47449807. The reversal of 47449769 is 96794474.

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 47449769 - 2²⁴ = 30672553 is a prime.

It is a super-2 number, since 2×47449769² = 4502961156306722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47449763) 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, 551699 + ... + 551784.

It is an arithmetic number, because the mean of its divisors is an integer number (12138324).

Almost surely, 2^47449769 is an apocalyptic number.

It is an amenable number.

47449769 is a deficient number, since it is larger than the sum of its proper divisors (1103527).

47449769 is a wasteful number, since it uses less digits than its factorization.

47449769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1103526.

The product of its digits is 1524096, while the sum is 50.

The square root of 47449769 is about 6888.3792723688. The cubic root of 47449769 is about 362.0301171488.

The spelling of 47449769 in words is "forty-seven million, four hundred forty-nine thousand, seven hundred sixty-nine".