20946699 has 12 divisors (see below), whose sum is σ = 31074576. Its totient is φ = 13586832.

The previous prime is 20946689. The next prime is 20946701. The reversal of 20946699 is 99664902.

It is not a de Polignac number, because 20946699 - 2⁷ = 20946571 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20946619) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 31119 + ... + 31784.

It is an arithmetic number, because the mean of its divisors is an integer number (2589548).

Almost surely, 2^20946699 is an apocalyptic number.

20946699 is a deficient number, since it is larger than the sum of its proper divisors (10127877).

20946699 is a wasteful number, since it uses less digits than its factorization.

20946699 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62946 (or 62943 counting only the distinct ones).

The product of its (nonzero) digits is 209952, while the sum is 45.

The square root of 20946699 is about 4576.7563841655. The cubic root of 20946699 is about 275.6588017533.

The spelling of 20946699 in words is "twenty million, nine hundred forty-six thousand, six hundred ninety-nine".