992897451 has 48 divisors (see below), whose sum is σ = 1808264640. Its totient is φ = 510935040.

The previous prime is 992897449. The next prime is 992897467. The reversal of 992897451 is 154798299.

It is not a de Polignac number, because 992897451 - 2¹ = 992897449 is a prime.

It is not an unprimeable number, because it can be changed into a prime (992897431) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 18795 + ... + 48363.

It is an arithmetic number, because the mean of its divisors is an integer number (37672180).

Almost surely, 2^992897451 is an apocalyptic number.

992897451 is a gapful number since it is divisible by the number (91) formed by its first and last digit.

992897451 is a deficient number, since it is larger than the sum of its proper divisors (815367189).

992897451 is a wasteful number, since it uses less digits than its factorization.

992897451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29636 (or 29633 counting only the distinct ones).

The product of its digits is 1632960, while the sum is 54.

The square root of 992897451 is about 31510.2753240907. The cubic root of 992897451 is about 997.6268563107.

The spelling of 992897451 in words is "nine hundred ninety-two million, eight hundred ninety-seven thousand, four hundred fifty-one".