32472891 has 18 divisors (see below), whose sum is σ = 51558780. Its totient is φ = 19679880.

The previous prime is 32472883. The next prime is 32472893. The reversal of 32472891 is 19827423.

It is not a de Polignac number, because 32472891 - 2³ = 32472883 is a prime.

It is not an unprimeable number, because it can be changed into a prime (32472893) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 13821 + ... + 15998.

Almost surely, 2^32472891 is an apocalyptic number.

32472891 is a deficient number, since it is larger than the sum of its proper divisors (19085889).

32472891 is a wasteful number, since it uses less digits than its factorization.

32472891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29847 (or 29833 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 32472891 is about 5698.4990128980. The cubic root of 32472891 is about 319.0364603589.

The spelling of 32472891 in words is "thirty-two million, four hundred seventy-two thousand, eight hundred ninety-one".