20712962 has 4 divisors (see below), whose sum is σ = 31069446. Its totient is φ = 10356480.

The previous prime is 20712917. The next prime is 20712973. The reversal of 20712962 is 26921702.

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., 14205361 + 6507601 = 3769^2 + 2551^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5178239 + ... + 5178242.

Almost surely, 2^20712962 is an apocalyptic number.

20712962 is a deficient number, since it is larger than the sum of its proper divisors (10356484).

20712962 is a wasteful number, since it uses less digits than its factorization.

20712962 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10356483.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 20712962 is about 4551.1495251200. The cubic root of 20712962 is about 274.6296369656.

The spelling of 20712962 in words is "twenty million, seven hundred twelve thousand, nine hundred sixty-two".