90983070 has 96 divisors (see below), whose sum is σ = 244902528. Its totient is φ = 23422464.

The previous prime is 90983051. The next prime is 90983107. The reversal of 90983070 is 7038909.

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 579432 + ... + 579588.

It is an arithmetic number, because the mean of its divisors is an integer number (2551068).

Almost surely, 2^90983070 is an apocalyptic number.

90983070 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 90983070, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (122451264).

90983070 is an abundant number, since it is smaller than the sum of its proper divisors (153919458).

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

90983070 is a wasteful number, since it uses less digits than its factorization.

90983070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 354 (or 351 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 36.

The square root of 90983070 is about 9538.5045997787. The cubic root of 90983070 is about 449.7662489702.

The spelling of 90983070 in words is "ninety million, nine hundred eighty-three thousand, seventy".