20672995 has 8 divisors (see below), whose sum is σ = 28351584. Its totient is φ = 14175744.

The previous prime is 20672989. The next prime is 20673013. The reversal of 20672995 is 59927602.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20672995 - 2³ = 20672987 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 295294 + ... + 295363.

It is an arithmetic number, because the mean of its divisors is an integer number (3543948).

Almost surely, 2^20672995 is an apocalyptic number.

20672995 is a deficient number, since it is larger than the sum of its proper divisors (7678589).

20672995 is an equidigital number, since it uses as much as digits as its factorization.

20672995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 590669.

The product of its (nonzero) digits is 68040, while the sum is 40.

The square root of 20672995 is about 4546.7565362575. The cubic root of 20672995 is about 274.4528846821.

The spelling of 20672995 in words is "twenty million, six hundred seventy-two thousand, nine hundred ninety-five".