90395232973 has 2 divisors, whose sum is σ = 90395232974. Its totient is φ = 90395232972.

The previous prime is 90395232959. The next prime is 90395233001. The reversal of 90395232973 is 37923259309.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 90395232964 + 9 = 300658^2 + 3^2 .

It is a cyclic number.

It is not a de Polignac number, because 90395232973 - 2¹³ = 90395224781 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 90395232973.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90395232923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45197616486 + 45197616487.

It is an arithmetic number, because the mean of its divisors is an integer number (45197616487).

Almost surely, 2^90395232973 is an apocalyptic number.

It is an amenable number.

90395232973 is a deficient number, since it is larger than the sum of its proper divisors (1).

90395232973 is an equidigital number, since it uses as much as digits as its factorization.

90395232973 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2755620, while the sum is 52.

The spelling of 90395232973 in words is "ninety billion, three hundred ninety-five million, two hundred thirty-two thousand, nine hundred seventy-three".