47651538 has 32 divisors (see below), whose sum is σ = 108490752. Its totient is φ = 13811600.

The previous prime is 47651533. The next prime is 47651551. The reversal of 47651538 is 83515674.

It is a junction number, because it is equal to n+sod(n) for n = 47651496 and 47651505.

It is not an unprimeable number, because it can be changed into a prime (47651531) 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, 14178 + ... + 17213.

It is an arithmetic number, because the mean of its divisors is an integer number (3390336).

Almost surely, 2^47651538 is an apocalyptic number.

47651538 is an abundant number, since it is smaller than the sum of its proper divisors (60839214).

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

47651538 is a wasteful number, since it uses less digits than its factorization.

47651538 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31430.

The product of its digits is 100800, while the sum is 39.

The square root of 47651538 is about 6903.0093437573. The cubic root of 47651538 is about 362.5425408656.

The spelling of 47651538 in words is "forty-seven million, six hundred fifty-one thousand, five hundred thirty-eight".