90630983 has 2 divisors, whose sum is σ = 90630984. Its totient is φ = 90630982.

The previous prime is 90630979. The next prime is 90630989. The reversal of 90630983 is 38903609.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 90630983 - 2² = 90630979 is a prime.

It is a super-3 number, since 3×90630983³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90630989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45315491 + 45315492.

It is an arithmetic number, because the mean of its divisors is an integer number (45315492).

Almost surely, 2^90630983 is an apocalyptic number.

90630983 is a deficient number, since it is larger than the sum of its proper divisors (1).

90630983 is an equidigital number, since it uses as much as digits as its factorization.

90630983 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34992, while the sum is 38.

The square root of 90630983 is about 9520.0306196987. The cubic root of 90630983 is about 449.1853293193.

The spelling of 90630983 in words is "ninety million, six hundred thirty thousand, nine hundred eighty-three".