20797395 has 16 divisors (see below), whose sum is σ = 33332640. Its totient is φ = 11073024.

The previous prime is 20797363. The next prime is 20797411. The reversal of 20797395 is 59379702.

It is not a de Polignac number, because 20797395 - 2⁵ = 20797363 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15387 + ... + 16683.

It is an arithmetic number, because the mean of its divisors is an integer number (2083290).

Almost surely, 2^20797395 is an apocalyptic number.

20797395 is a deficient number, since it is larger than the sum of its proper divisors (12535245).

20797395 is a wasteful number, since it uses less digits than its factorization.

20797395 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2374.

The product of its (nonzero) digits is 119070, while the sum is 42.

The square root of 20797395 is about 4560.4160994365. The cubic root of 20797395 is about 275.0022919919.

The spelling of 20797395 in words is "twenty million, seven hundred ninety-seven thousand, three hundred ninety-five".