90979403 has 2 divisors, whose sum is σ = 90979404. Its totient is φ = 90979402.

The previous prime is 90979387. The next prime is 90979423. The reversal of 90979403 is 30497909.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 90979403 - 2⁴ = 90979387 is a prime.

It is not a weakly prime, because it can be changed into another prime (90979423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45489701 + 45489702.

It is an arithmetic number, because the mean of its divisors is an integer number (45489702).

Almost surely, 2^90979403 is an apocalyptic number.

90979403 is a deficient number, since it is larger than the sum of its proper divisors (1).

90979403 is an equidigital number, since it uses as much as digits as its factorization.

90979403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 61236, while the sum is 41.

The square root of 90979403 is about 9538.3123769355. The cubic root of 90979403 is about 449.7602063991.

The spelling of 90979403 in words is "ninety million, nine hundred seventy-nine thousand, four hundred three".