20374877 has 2 divisors, whose sum is σ = 20374878. Its totient is φ = 20374876.

The previous prime is 20374853. The next prime is 20374889. The reversal of 20374877 is 77847302.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16556761 + 3818116 = 4069^2 + 1954^2 .

It is a cyclic number.

It is not a de Polignac number, because 20374877 - 2⁶ = 20374813 is a prime.

It is a super-2 number, since 2×20374877² = 830271225530258, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20374877.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20374477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10187438 + 10187439.

It is an arithmetic number, because the mean of its divisors is an integer number (10187439).

Almost surely, 2^20374877 is an apocalyptic number.

It is an amenable number.

20374877 is a deficient number, since it is larger than the sum of its proper divisors (1).

20374877 is an equidigital number, since it uses as much as digits as its factorization.

20374877 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 65856, while the sum is 38.

The square root of 20374877 is about 4513.8538966165. The cubic root of 20374877 is about 273.1272289561.

The spelling of 20374877 in words is "twenty million, three hundred seventy-four thousand, eight hundred seventy-seven".