90493399 has 2 divisors, whose sum is σ = 90493400. Its totient is φ = 90493398.

The previous prime is 90493373. The next prime is 90493411. The reversal of 90493399 is 99339409.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 90493399 - 2⁵ = 90493367 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90493999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45246699 + 45246700.

It is an arithmetic number, because the mean of its divisors is an integer number (45246700).

Almost surely, 2^90493399 is an apocalyptic number.

90493399 is a deficient number, since it is larger than the sum of its proper divisors (1).

90493399 is an equidigital number, since it uses as much as digits as its factorization.

90493399 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 236196, while the sum is 46.

The square root of 90493399 is about 9512.8018480362. The cubic root of 90493399 is about 448.9579162380.

The spelling of 90493399 in words is "ninety million, four hundred ninety-three thousand, three hundred ninety-nine".