20674875 has 32 divisors (see below), whose sum is σ = 37058112. Its totient is φ = 10176000.

The previous prime is 20674867. The next prime is 20674919. The reversal of 20674875 is 57847602.

It is not a de Polignac number, because 20674875 - 2³ = 20674867 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2755 + ... + 6995.

It is an arithmetic number, because the mean of its divisors is an integer number (1158066).

Almost surely, 2^20674875 is an apocalyptic number.

20674875 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

20674875 is a deficient number, since it is larger than the sum of its proper divisors (16383237).

20674875 is a wasteful number, since it uses less digits than its factorization.

20674875 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4272 (or 4262 counting only the distinct ones).

The product of its (nonzero) digits is 94080, while the sum is 39.

The square root of 20674875 is about 4546.9632723390. The cubic root of 20674875 is about 274.4612040021.

The spelling of 20674875 in words is "twenty million, six hundred seventy-four thousand, eight hundred seventy-five".