90634079 has 2 divisors, whose sum is σ = 90634080. Its totient is φ = 90634078.

The previous prime is 90634057. The next prime is 90634087. The reversal of 90634079 is 97043609.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-90634079 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 (90634039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45317039 + 45317040.

It is an arithmetic number, because the mean of its divisors is an integer number (45317040).

Almost surely, 2^90634079 is an apocalyptic number.

90634079 is a deficient number, since it is larger than the sum of its proper divisors (1).

90634079 is an equidigital number, since it uses as much as digits as its factorization.

90634079 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40824, while the sum is 38.

The square root of 90634079 is about 9520.1932228290. The cubic root of 90634079 is about 449.1904440600.

The spelling of 90634079 in words is "ninety million, six hundred thirty-four thousand, seventy-nine".