90996774 has 32 divisors (see below), whose sum is σ = 199082880. Its totient is φ = 27499200.

The previous prime is 90996769. The next prime is 90996779. The reversal of 90996774 is 47769909.

It is an interprime number because it is at equal distance from previous prime (90996769) and next prime (90996779).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90996779) 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, 25309 + ... + 28679.

It is an arithmetic number, because the mean of its divisors is an integer number (6221340).

Almost surely, 2^90996774 is an apocalyptic number.

90996774 is an abundant number, since it is smaller than the sum of its proper divisors (108086106).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

90996774 is a wasteful number, since it uses less digits than its factorization.

90996774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3796.

The product of its (nonzero) digits is 857304, while the sum is 51.

The square root of 90996774 is about 9539.2229243267. Note that the first 3 decimals coincide. The cubic root of 90996774 is about 449.7888293149.

The spelling of 90996774 in words is "ninety million, nine hundred ninety-six thousand, seven hundred seventy-four".