20974059 has 14 divisors (see below), whose sum is σ = 31447796. Its totient is φ = 13982220.

The previous prime is 20974049. The next prime is 20974111. The reversal of 20974059 is 95047902.

It is not a de Polignac number, because 20974059 - 2⁸ = 20973803 is a prime.

It is a super-2 number, since 2×20974059² = 879822301870962, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20974049) by changing a digit.

It is a polite number, since it can be written in 13 ways as a sum of consecutive naturals, for example, 13657 + ... + 15114.

Almost surely, 2^20974059 is an apocalyptic number.

20974059 is a deficient number, since it is larger than the sum of its proper divisors (10473737).

20974059 is an frugal number, since it uses more digits than its factorization.

20974059 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28789 (or 28774 counting only the distinct ones).

The product of its (nonzero) digits is 22680, while the sum is 36.

The square root of 20974059 is about 4579.7444251836. The cubic root of 20974059 is about 275.7787688416.

The spelling of 20974059 in words is "twenty million, nine hundred seventy-four thousand, fifty-nine".