20796951 has 8 divisors (see below), whose sum is σ = 31690624. Its totient is φ = 11883960.

The previous prime is 20796947. The next prime is 20796959. The reversal of 20796951 is 15969702.

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

It is not a de Polignac number, because 20796951 - 2² = 20796947 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20796959) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 495145 + ... + 495186.

It is an arithmetic number, because the mean of its divisors is an integer number (3961328).

Almost surely, 2^20796951 is an apocalyptic number.

20796951 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

20796951 is a deficient number, since it is larger than the sum of its proper divisors (10893673).

20796951 is an equidigital number, since it uses as much as digits as its factorization.

20796951 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 990341.

The product of its (nonzero) digits is 34020, while the sum is 39.

The square root of 20796951 is about 4560.3674194082. The cubic root of 20796951 is about 275.0003349858. Note that the first 3 decimals are identical.

The spelling of 20796951 in words is "twenty million, seven hundred ninety-six thousand, nine hundred fifty-one".