20164627 has 8 divisors (see below), whose sum is σ = 23516000. Its totient is φ = 17283672.

The previous prime is 20164621. The next prime is 20164631. The reversal of 20164627 is 72646102.

It is a de Polignac number, because none of the positive numbers 2^k-20164627 is a prime.

It is a super-2 number, since 2×20164627² = 813224364098258, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20164595 and 20164604.

It is not an unprimeable number, because it can be changed into a prime (20164621) by changing a digit.

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, 29052 + ... + 29737.

It is an arithmetic number, because the mean of its divisors is an integer number (2939500).

Almost surely, 2^20164627 is an apocalyptic number.

20164627 is a deficient number, since it is larger than the sum of its proper divisors (3351373).

20164627 is an frugal number, since it uses more digits than its factorization.

20164627 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58810 (or 58796 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 28.

The square root of 20164627 is about 4490.5040919701. The cubic root of 20164627 is about 272.1845048273.

The spelling of 20164627 in words is "twenty million, one hundred sixty-four thousand, six hundred twenty-seven".