47256669 has 16 divisors (see below), whose sum is σ = 70324800. Its totient is φ = 31362768.

The previous prime is 47256661. The next prime is 47256673. The reversal of 47256669 is 96665274.

It is not a de Polignac number, because 47256669 - 2³ = 47256661 is a prime.

It is a super-2 number, since 2×47256669² = 4466385529951122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47256661) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2362 + ... + 10004.

It is an arithmetic number, because the mean of its divisors is an integer number (4395300).

Almost surely, 2^47256669 is an apocalyptic number.

It is an amenable number.

47256669 is a deficient number, since it is larger than the sum of its proper divisors (23068131).

47256669 is a wasteful number, since it uses less digits than its factorization.

47256669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7881 (or 7875 counting only the distinct ones).

The product of its digits is 544320, while the sum is 45.

The square root of 47256669 is about 6874.3486236879. The cubic root of 47256669 is about 361.5383475444.

The spelling of 47256669 in words is "forty-seven million, two hundred fifty-six thousand, six hundred sixty-nine".