20695712 has 24 divisors (see below), whose sum is σ = 42890400. Its totient is φ = 9802944.

The previous prime is 20695711. The next prime is 20695729. The reversal of 20695712 is 21759602.

It is a Harshad number since it is a multiple of its sum of digits (32).

It is not an unprimeable number, because it can be changed into a prime (20695711) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16412 + ... + 17627.

It is an arithmetic number, because the mean of its divisors is an integer number (1787100).

Almost surely, 2^20695712 is an apocalyptic number.

It is an amenable number.

20695712 is an abundant number, since it is smaller than the sum of its proper divisors (22194688).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20695712 is a wasteful number, since it uses less digits than its factorization.

20695712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34068 (or 34060 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 32.

The square root of 20695712 is about 4549.2540047792. The cubic root of 20695712 is about 274.5533775206.

The spelling of 20695712 in words is "twenty million, six hundred ninety-five thousand, seven hundred twelve".