996431 has 2 divisors, whose sum is σ = 996432. Its totient is φ = 996430.

The previous prime is 996409. The next prime is 996461. The reversal of 996431 is 134699.

It is a weak prime.

It is an emirp because it is prime and its reverse (134699) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 996431 - 2⁶ = 996367 is a prime.

It is a super-2 number, since 2×996431² = 1985749475522, which contains 22 as substring.

It is a Chen prime.

It is a nialpdrome in base 10.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (996461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 498215 + 498216.

It is an arithmetic number, because the mean of its divisors is an integer number (498216).

2⁹⁹⁶⁴³¹ is an apocalyptic number.

996431 is a deficient number, since it is larger than the sum of its proper divisors (1).

996431 is an equidigital number, since it uses as much as digits as its factorization.

996431 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5832, while the sum is 32.

The square root of 996431 is about 998.2139049322. The cubic root of 996431 is about 99.8808915214.

The spelling of 996431 in words is "nine hundred ninety-six thousand, four hundred thirty-one".