992313261 has 20 divisors (see below), whose sum is σ = 1492179744. Its totient is φ = 657153000.

The previous prime is 992313251. The next prime is 992313263. The reversal of 992313261 is 162313299.

It is a happy number.

It is not a de Polignac number, because 992313261 - 2⁶ = 992313197 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (992313263) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 28335 + ... + 52796.

Almost surely, 2^992313261 is an apocalyptic number.

It is an amenable number.

992313261 is a deficient number, since it is larger than the sum of its proper divisors (499866483).

992313261 is a wasteful number, since it uses less digits than its factorization.

992313261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81294 (or 81285 counting only the distinct ones).

The product of its digits is 17496, while the sum is 36.

The square root of 992313261 is about 31501.0041268528. The cubic root of 992313261 is about 997.4311603802.

The spelling of 992313261 in words is "nine hundred ninety-two million, three hundred thirteen thousand, two hundred sixty-one".