996778190 has 32 divisors (see below), whose sum is σ = 1890289440. Its totient is φ = 377395200.

The previous prime is 996778177. The next prime is 996778193. The reversal of 996778190 is 91877699.

It is a super-2 number, since 2×996778190² = 1987133520119352200, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (996778193) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 394130 + ... + 396650.

It is an arithmetic number, because the mean of its divisors is an integer number (59071545).

Almost surely, 2^996778190 is an apocalyptic number.

996778190 is a deficient number, since it is larger than the sum of its proper divisors (893511250).

996778190 is a wasteful number, since it uses less digits than its factorization.

996778190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4628.

The product of its (nonzero) digits is 1714608, while the sum is 56.

The square root of 996778190 is about 31571.7942157236. The cubic root of 996778190 is about 998.9249079246.

The spelling of 996778190 in words is "nine hundred ninety-six million, seven hundred seventy-eight thousand, one hundred ninety".