32564427 has 16 divisors (see below), whose sum is σ = 49704192. Its totient is φ = 18577440.

The previous prime is 32564417. The next prime is 32564437. The reversal of 32564427 is 72446523.

It is an interprime number because it is at equal distance from previous prime (32564417) and next prime (32564437).

It is not a de Polignac number, because 32564427 - 2¹⁰ = 32563403 is a prime.

It is not an unprimeable number, because it can be changed into a prime (32564407) 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, 19593 + ... + 21189.

It is an arithmetic number, because the mean of its divisors is an integer number (3106512).

Almost surely, 2^32564427 is an apocalyptic number.

32564427 is a deficient number, since it is larger than the sum of its proper divisors (17139765).

32564427 is a wasteful number, since it uses less digits than its factorization.

32564427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2578.

The product of its digits is 40320, while the sum is 33.

The square root of 32564427 is about 5706.5249495643. The cubic root of 32564427 is about 319.3359504214.

The spelling of 32564427 in words is "thirty-two million, five hundred sixty-four thousand, four hundred twenty-seven".