996552977 has 4 divisors (see below), whose sum is σ = 1138917696. Its totient is φ = 854188260.

The previous prime is 996552959. The next prime is 996553031. The reversal of 996552977 is 779255699.

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, and also an emirpimes, since its reverse is a distinct semiprime: 779255699 = 1987 ⋅392177.

It is a cyclic number.

It is not a de Polignac number, because 996552977 - 2²⁰ = 995504401 is a prime.

It is not an unprimeable number, because it can be changed into a prime (996552377) 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, 71182349 + ... + 71182362.

It is an arithmetic number, because the mean of its divisors is an integer number (284729424).

Almost surely, 2^996552977 is an apocalyptic number.

It is an amenable number.

996552977 is a deficient number, since it is larger than the sum of its proper divisors (142364719).

996552977 is a wasteful number, since it uses less digits than its factorization.

996552977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142364718.

The product of its digits is 10716300, while the sum is 59.

The square root of 996552977 is about 31568.2273338241. The cubic root of 996552977 is about 998.8496695807.

The spelling of 996552977 in words is "nine hundred ninety-six million, five hundred fifty-two thousand, nine hundred seventy-seven".