992874397 has 2 divisors, whose sum is σ = 992874398. Its totient is φ = 992874396.

The previous prime is 992874277. The next prime is 992874401. The reversal of 992874397 is 793478299.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 886907961 + 105966436 = 29781^2 + 10294^2 .

It is a cyclic number.

It is not a de Polignac number, because 992874397 - 2⁷ = 992874269 is a prime.

It is a super-2 number, since 2×992874397² = 1971599136436227218, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (992874997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 496437198 + 496437199.

It is an arithmetic number, because the mean of its divisors is an integer number (496437199).

Almost surely, 2^992874397 is an apocalyptic number.

It is an amenable number.

992874397 is a deficient number, since it is larger than the sum of its proper divisors (1).

992874397 is an equidigital number, since it uses as much as digits as its factorization.

992874397 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6858432, while the sum is 58.

The square root of 992874397 is about 31509.9095047891. The cubic root of 992874397 is about 997.6191349804.

It can be divided in two parts, 99287 and 4397, that added together give a square (103684 = 322²).

The spelling of 992874397 in words is "nine hundred ninety-two million, eight hundred seventy-four thousand, three hundred ninety-seven".