47129656 has 16 divisors (see below), whose sum is σ = 100992240. Its totient is φ = 20198400.

The previous prime is 47129647. The next prime is 47129659. The reversal of 47129656 is 65692174.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47129659) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 420745 + ... + 420856.

It is an arithmetic number, because the mean of its divisors is an integer number (6312015).

Almost surely, 2^47129656 is an apocalyptic number.

It is an amenable number.

47129656 is an abundant number, since it is smaller than the sum of its proper divisors (53862584).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

47129656 is a wasteful number, since it uses less digits than its factorization.

47129656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 841614 (or 841610 counting only the distinct ones).

The product of its digits is 90720, while the sum is 40.

The square root of 47129656 is about 6865.1042235351. The cubic root of 47129656 is about 361.2141515255.

The spelling of 47129656 in words is "forty-seven million, one hundred twenty-nine thousand, six hundred fifty-six".