32720966 has 4 divisors (see below), whose sum is σ = 49081452. Its totient is φ = 16360482.

The previous prime is 32720953. The next prime is 32721001. The reversal of 32720966 is 66902723.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 66902723 = 103 ⋅649541.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8180240 + ... + 8180243.

It is an arithmetic number, because the mean of its divisors is an integer number (12270363).

Almost surely, 2^32720966 is an apocalyptic number.

32720966 is a deficient number, since it is larger than the sum of its proper divisors (16360486).

32720966 is a wasteful number, since it uses less digits than its factorization.

32720966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16360485.

The product of its (nonzero) digits is 27216, while the sum is 35.

The square root of 32720966 is about 5720.2242963017. The cubic root of 32720966 is about 319.8468212188.

The spelling of 32720966 in words is "thirty-two million, seven hundred twenty thousand, nine hundred sixty-six".