90433379 has 2 divisors, whose sum is σ = 90433380. Its totient is φ = 90433378.

The previous prime is 90433367. The next prime is 90433381. The reversal of 90433379 is 97333409.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 90433379 - 2⁴ = 90433363 is a prime.

Together with 90433381, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (90433979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45216689 + 45216690.

It is an arithmetic number, because the mean of its divisors is an integer number (45216690).

Almost surely, 2^90433379 is an apocalyptic number.

90433379 is a deficient number, since it is larger than the sum of its proper divisors (1).

90433379 is an equidigital number, since it uses as much as digits as its factorization.

90433379 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 38.

The square root of 90433379 is about 9509.6466285557. The cubic root of 90433379 is about 448.8586367544.

The spelling of 90433379 in words is "ninety million, four hundred thirty-three thousand, three hundred seventy-nine".