20376897 has 16 divisors (see below), whose sum is σ = 29382912. Its totient is φ = 12512000.

The previous prime is 20376893. The next prime is 20376907. The reversal of 20376897 is 79867302.

It is not a de Polignac number, because 20376897 - 2² = 20376893 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20376893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1854 + ... + 6647.

It is an arithmetic number, because the mean of its divisors is an integer number (1836432).

Almost surely, 2^20376897 is an apocalyptic number.

It is an amenable number.

20376897 is a deficient number, since it is larger than the sum of its proper divisors (9006015).

20376897 is a wasteful number, since it uses less digits than its factorization.

20376897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8568.

The product of its (nonzero) digits is 127008, while the sum is 42.

The square root of 20376897 is about 4514.0776466516. The cubic root of 20376897 is about 273.1362547574.

The spelling of 20376897 in words is "twenty million, three hundred seventy-six thousand, eight hundred ninety-seven".