32387481 has 27 divisors (see below), whose sum is σ = 54621333. Its totient is φ = 18438840.

The previous prime is 32387447. The next prime is 32387507. The reversal of 32387481 is 18478323.

The square root of 32387481 is 5691.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 32387481 - 2¹⁷ = 32256409 is a prime.

It is a super-2 number, since 2×32387481² = 2097897851050722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (32387681) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 119376 + ... + 119646.

Almost surely, 2^32387481 is an apocalyptic number.

32387481 is the 5691-st square number.

32387481 is the 2846-th centered octagonal number.

It is an amenable number.

32387481 is a deficient number, since it is larger than the sum of its proper divisors (22233852).

32387481 is an equidigital number, since it uses as much as digits as its factorization.

32387481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 562 (or 281 counting only the distinct ones).

The product of its digits is 32256, while the sum is 36.

The cubic root of 32387481 is about 318.7565055189.

Multiplying 32387481 by its sum of digits (36), we get a square (1165949316 = 34146²).

The spelling of 32387481 in words is "thirty-two million, three hundred eighty-seven thousand, four hundred eighty-one".