32530978 has 4 divisors (see below), whose sum is σ = 48796470. Its totient is φ = 16265488.

The previous prime is 32530973. The next prime is 32530991. The reversal of 32530978 is 87903523.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 16426809 + 16104169 = 4053^2 + 4013^2 .

It is not an unprimeable number, because it can be changed into a prime (32530973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8132743 + ... + 8132746.

Almost surely, 2^32530978 is an apocalyptic number.

32530978 is a deficient number, since it is larger than the sum of its proper divisors (16265492).

32530978 is a wasteful number, since it uses less digits than its factorization.

32530978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16265491.

The product of its (nonzero) digits is 45360, while the sum is 37.

The square root of 32530978 is about 5703.5934287079. The cubic root of 32530978 is about 319.2265761902.

The spelling of 32530978 in words is "thirty-two million, five hundred thirty thousand, nine hundred seventy-eight".