20897302 has 16 divisors (see below), whose sum is σ = 33105600. Its totient is φ = 9865800.

The previous prime is 20897297. The next prime is 20897311. The reversal of 20897302 is 20379802.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13677 + ... + 15127.

It is an arithmetic number, because the mean of its divisors is an integer number (2069100).

Almost surely, 2^20897302 is an apocalyptic number.

20897302 is a deficient number, since it is larger than the sum of its proper divisors (12208298).

20897302 is a wasteful number, since it uses less digits than its factorization.

20897302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1851.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 20897302 is about 4571.3566913992. The cubic root of 20897302 is about 275.4419428323.

The spelling of 20897302 in words is "twenty million, eight hundred ninety-seven thousand, three hundred two".