20975962 has 16 divisors (see below), whose sum is σ = 37851840. Its totient is φ = 8516448.

The previous prime is 20975939. The next prime is 20975971. The reversal of 20975962 is 26957902.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39163 + ... + 39694.

It is an arithmetic number, because the mean of its divisors is an integer number (2365740).

Almost surely, 2^20975962 is an apocalyptic number.

20975962 is a deficient number, since it is larger than the sum of its proper divisors (16875878).

20975962 is a wasteful number, since it uses less digits than its factorization.

20975962 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78885.

The product of its (nonzero) digits is 68040, while the sum is 40.

The square root of 20975962 is about 4579.9521831565. The cubic root of 20975962 is about 275.7871091622.

The spelling of 20975962 in words is "twenty million, nine hundred seventy-five thousand, nine hundred sixty-two".