90724583 has 2 divisors, whose sum is σ = 90724584. Its totient is φ = 90724582.

The previous prime is 90724577. The next prime is 90724637. The reversal of 90724583 is 38542709.

It is a weak prime.

It is an emirp because it is prime and its reverse (38542709) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 90724583 - 2⁶ = 90724519 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90744583) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45362291 + 45362292.

It is an arithmetic number, because the mean of its divisors is an integer number (45362292).

Almost surely, 2^90724583 is an apocalyptic number.

90724583 is a deficient number, since it is larger than the sum of its proper divisors (1).

90724583 is an equidigital number, since it uses as much as digits as its factorization.

90724583 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 60480, while the sum is 38.

The square root of 90724583 is about 9524.9453016802. The cubic root of 90724583 is about 449.3399095744.

The spelling of 90724583 in words is "ninety million, seven hundred twenty-four thousand, five hundred eighty-three".