996601231 has 4 divisors (see below), whose sum is σ = 996787264. Its totient is φ = 996415200.

The previous prime is 996601213. The next prime is 996601271. The reversal of 996601231 is 132106699.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 996601231 - 2⁹ = 996600719 is a prime.

It is a super-2 number, since 2×996601231² = 1986428027261430722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (996601271) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 84735 + ... + 95776.

It is an arithmetic number, because the mean of its divisors is an integer number (249196816).

Almost surely, 2^996601231 is an apocalyptic number.

996601231 is a deficient number, since it is larger than the sum of its proper divisors (186033).

996601231 is a wasteful number, since it uses less digits than its factorization.

996601231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186032.

The product of its (nonzero) digits is 17496, while the sum is 37.

The square root of 996601231 is about 31568.9916056880. The cubic root of 996601231 is about 998.8657910564.

The spelling of 996601231 in words is "nine hundred ninety-six million, six hundred one thousand, two hundred thirty-one".