996400677 has 4 divisors (see below), whose sum is σ = 1328534240. Its totient is φ = 664267116.

The previous prime is 996400649. The next prime is 996400709. The reversal of 996400677 is 776004699.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 996400677 - 2¹⁹ = 995876389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (996400607) 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, 166066777 + ... + 166066782.

It is an arithmetic number, because the mean of its divisors is an integer number (332133560).

Almost surely, 2^996400677 is an apocalyptic number.

It is an amenable number.

996400677 is a deficient number, since it is larger than the sum of its proper divisors (332133563).

996400677 is a wasteful number, since it uses less digits than its factorization.

996400677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332133562.

The product of its (nonzero) digits is 571536, while the sum is 48.

The square root of 996400677 is about 31565.8150061106. The cubic root of 996400677 is about 998.7987833229.

The spelling of 996400677 in words is "nine hundred ninety-six million, four hundred thousand, six hundred seventy-seven".