20946675 has 24 divisors (see below), whose sum is σ = 36140544. Its totient is φ = 10684960.

The previous prime is 20946661. The next prime is 20946689. The reversal of 20946675 is 57664902.

It is an interprime number because it is at equal distance from previous prime (20946661) and next prime (20946689).

It is not a de Polignac number, because 20946675 - 2¹⁰ = 20945651 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4347 + ... + 7796.

It is an arithmetic number, because the mean of its divisors is an integer number (1505856).

Almost surely, 2^20946675 is an apocalyptic number.

20946675 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

20946675 is a deficient number, since it is larger than the sum of its proper divisors (15193869).

20946675 is a wasteful number, since it uses less digits than its factorization.

20946675 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12179 (or 12174 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 39.

The square root of 20946675 is about 4576.7537622206. The cubic root of 20946675 is about 275.6586964731.

The spelling of 20946675 in words is "twenty million, nine hundred forty-six thousand, six hundred seventy-five".