20296397 has 8 divisors (see below), whose sum is σ = 22239360. Its totient is φ = 18369760.

The previous prime is 20296369. The next prime is 20296417. The reversal of 20296397 is 79369202.

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 20296397 - 2⁸ = 20296141 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20296397.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20296337) 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, 1397 + ... + 6522.

It is an arithmetic number, because the mean of its divisors is an integer number (2779920).

Almost surely, 2^20296397 is an apocalyptic number.

It is an amenable number.

20296397 is a deficient number, since it is larger than the sum of its proper divisors (1942963).

20296397 is a wasteful number, since it uses less digits than its factorization.

20296397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8163.

The product of its (nonzero) digits is 40824, while the sum is 38.

The square root of 20296397 is about 4505.1522726763. The cubic root of 20296397 is about 272.7761003721.

The spelling of 20296397 in words is "twenty million, two hundred ninety-six thousand, three hundred ninety-seven".