20297095 has 32 divisors (see below), whose sum is σ = 30965760. Its totient is φ = 12424320.

The previous prime is 20297041. The next prime is 20297131. The reversal of 20297095 is 59079202.

It is not a de Polignac number, because 20297095 - 2⁹ = 20296583 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20297095.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13386 + ... + 14824.

It is an arithmetic number, because the mean of its divisors is an integer number (967680).

Almost surely, 2^20297095 is an apocalyptic number.

20297095 is a deficient number, since it is larger than the sum of its proper divisors (10668665).

20297095 is a wasteful number, since it uses less digits than its factorization.

20297095 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1495.

The product of its (nonzero) digits is 11340, while the sum is 34.

The square root of 20297095 is about 4505.2297388702. The cubic root of 20297095 is about 272.7792272906.

The spelling of 20297095 in words is "twenty million, two hundred ninety-seven thousand, ninety-five".