90504677 has 2 divisors, whose sum is σ = 90504678. Its totient is φ = 90504676.

The previous prime is 90504653. The next prime is 90504683. The reversal of 90504677 is 77640509.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 59691076 + 30813601 = 7726^2 + 5551^2 .

It is an emirp because it is prime and its reverse (77640509) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 90504677 - 2⁶ = 90504613 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 90504677.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90504607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45252338 + 45252339.

It is an arithmetic number, because the mean of its divisors is an integer number (45252339).

Almost surely, 2^90504677 is an apocalyptic number.

It is an amenable number.

90504677 is a deficient number, since it is larger than the sum of its proper divisors (1).

90504677 is an equidigital number, since it uses as much as digits as its factorization.

90504677 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 52920, while the sum is 38.

The square root of 90504677 is about 9513.3946097069. The cubic root of 90504677 is about 448.9765663536.

The spelling of 90504677 in words is "ninety million, five hundred four thousand, six hundred seventy-seven".