21760675 has 12 divisors (see below), whose sum is σ = 27442440. Its totient is φ = 17112320.

The previous prime is 21760639. The next prime is 21760679. The reversal of 21760675 is 57606712.

It is not a de Polignac number, because 21760675 - 2⁷ = 21760547 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 21760675.

It is not an unprimeable number, because it can be changed into a prime (21760679) 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, 5902 + ... + 8851.

It is an arithmetic number, because the mean of its divisors is an integer number (2286870).

Almost surely, 2^21760675 is an apocalyptic number.

21760675 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

21760675 is a deficient number, since it is larger than the sum of its proper divisors (5681765).

21760675 is a wasteful number, since it uses less digits than its factorization.

21760675 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14822 (or 14817 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 34.

The square root of 21760675 is about 4664.8338662808. The cubic root of 21760675 is about 279.1841686015.

The spelling of 21760675 in words is "twenty-one million, seven hundred sixty thousand, six hundred seventy-five".