90718403 has 2 divisors, whose sum is σ = 90718404. Its totient is φ = 90718402.

The previous prime is 90718393. The next prime is 90718447. The reversal of 90718403 is 30481709.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 90718403 - 2¹⁴ = 90702019 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 90718403.

It is not a weakly prime, because it can be changed into another prime (90798403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45359201 + 45359202.

It is an arithmetic number, because the mean of its divisors is an integer number (45359202).

Almost surely, 2^90718403 is an apocalyptic number.

90718403 is a deficient number, since it is larger than the sum of its proper divisors (1).

90718403 is an equidigital number, since it uses as much as digits as its factorization.

90718403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6048, while the sum is 32.

The square root of 90718403 is about 9524.6208848437. The cubic root of 90718403 is about 449.3297065930.

The spelling of 90718403 in words is "ninety million, seven hundred eighteen thousand, four hundred three".