20323877 has 6 divisors (see below), whose sum is σ = 23642118. Its totient is φ = 17420424.

The previous prime is 20323871. The next prime is 20323909. The reversal of 20323877 is 77832302.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 18957316 + 1366561 = 4354^2 + 1169^2 .

It is not a de Polignac number, because 20323877 - 2¹² = 20319781 is a prime.

It is a super-2 number, since 2×20323877² = 826119952622258, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20323871) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 207338 + ... + 207435.

It is an arithmetic number, because the mean of its divisors is an integer number (3940353).

Almost surely, 2^20323877 is an apocalyptic number.

It is an amenable number.

20323877 is a deficient number, since it is larger than the sum of its proper divisors (3318241).

20323877 is an equidigital number, since it uses as much as digits as its factorization.

20323877 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 414787 (or 414780 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 32.

The square root of 20323877 is about 4508.2010824718. The cubic root of 20323877 is about 272.8991518805.

The spelling of 20323877 in words is "twenty million, three hundred twenty-three thousand, eight hundred seventy-seven".