992431 has 8 divisors (see below), whose sum is σ = 1096704. Its totient is φ = 890520.

The previous prime is 992429. The next prime is 992437. The reversal of 992431 is 134299.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 992431 - 2¹ = 992429 is a prime.

It is a super-2 number, since 2×992431² = 1969838579522, which contains 22 as substring.

It is a Duffinian number.

992431 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 992431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (992437) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 370 + ... + 1456.

It is an arithmetic number, because the mean of its divisors is an integer number (137088).

2⁹⁹²⁴³¹ is an apocalyptic number.

992431 is a deficient number, since it is larger than the sum of its proper divisors (104273).

992431 is a wasteful number, since it uses less digits than its factorization.

992431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1181.

The product of its digits is 1944, while the sum is 28.

The square root of 992431 is about 996.2083115493. The cubic root of 992431 is about 99.7470607568.

The spelling of 992431 in words is "nine hundred ninety-two thousand, four hundred thirty-one".