20692684 has 12 divisors (see below), whose sum is σ = 36895824. Its totient is φ = 10151024.

The previous prime is 20692681. The next prime is 20692697. The reversal of 20692684 is 48629602.

It is a super-2 number, since 2×20692684² = 856374342247712, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20692681) 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, 48592 + ... + 49015.

It is an arithmetic number, because the mean of its divisors is an integer number (3074652).

Almost surely, 2^20692684 is an apocalyptic number.

It is an amenable number.

20692684 is a deficient number, since it is larger than the sum of its proper divisors (16203140).

20692684 is a wasteful number, since it uses less digits than its factorization.

20692684 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97664 (or 97662 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 37.

The square root of 20692684 is about 4548.9211907880. The cubic root of 20692684 is about 274.5399868534.

It can be divided in two parts, 2069 and 2684, that added together give a triangular number (4753 = T₉₇).

The spelling of 20692684 in words is "twenty million, six hundred ninety-two thousand, six hundred eighty-four".