20672712 has 32 divisors (see below), whose sum is σ = 57424800. Its totient is φ = 6890832.

The previous prime is 20672683. The next prime is 20672747. The reversal of 20672712 is 21727602.

It is a super-2 number, since 2×20672712² = 854722042869888, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

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, 47638 + ... + 48069.

It is an arithmetic number, because the mean of its divisors is an integer number (1794525).

Almost surely, 2^20672712 is an apocalyptic number.

It is an amenable number.

20672712 is an abundant number, since it is smaller than the sum of its proper divisors (36752088).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20672712 is a wasteful number, since it uses less digits than its factorization.

20672712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95722 (or 95712 counting only the distinct ones).

The product of its (nonzero) digits is 2352, while the sum is 27.

The square root of 20672712 is about 4546.7254150652. The cubic root of 20672712 is about 274.4516323153.

The spelling of 20672712 in words is "twenty million, six hundred seventy-two thousand, seven hundred twelve".