20712674 has 16 divisors (see below), whose sum is σ = 32204088. Its totient is φ = 9983232.

The previous prime is 20712649. The next prime is 20712689. The reversal of 20712674 is 47621702.

It can be written as a sum of positive squares in 4 ways, for example, as 16120225 + 4592449 = 4015^2 + 2143^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7124 + ... + 9600.

Almost surely, 2^20712674 is an apocalyptic number.

20712674 is a deficient number, since it is larger than the sum of its proper divisors (11491414).

20712674 is a wasteful number, since it uses less digits than its factorization.

20712674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2629.

The product of its (nonzero) digits is 4704, while the sum is 29.

The square root of 20712674 is about 4551.1178846521. The cubic root of 20712674 is about 274.6283641120.

The spelling of 20712674 in words is "twenty million, seven hundred twelve thousand, six hundred seventy-four".