90917736 has 192 divisors, whose sum is σ = 300686400. Its totient is φ = 22643712.

The previous prime is 90917731. The next prime is 90917741. The reversal of 90917736 is 63771909.

It is an interprime number because it is at equal distance from previous prime (90917731) and next prime (90917741).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90917731) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 290316 + ... + 290628.

It is an arithmetic number, because the mean of its divisors is an integer number (1566075).

Almost surely, 2^90917736 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 90917736, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (150343200).

90917736 is an abundant number, since it is smaller than the sum of its proper divisors (209768664).

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

90917736 is a wasteful number, since it uses less digits than its factorization.

90917736 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 368 (or 357 counting only the distinct ones).

The product of its (nonzero) digits is 71442, while the sum is 42.

The square root of 90917736 is about 9535.0792340704. The cubic root of 90917736 is about 449.6585656960.

The spelling of 90917736 in words is "ninety million, nine hundred seventeen thousand, seven hundred thirty-six".