90582731 has 2 divisors, whose sum is σ = 90582732. Its totient is φ = 90582730.

The previous prime is 90582719. The next prime is 90582757. The reversal of 90582731 is 13728509.

It is a weak prime.

It is an emirp because it is prime and its reverse (13728509) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 90582731 - 2¹⁰ = 90581707 is a prime.

It is a super-2 number, since 2×90582731² = 16410462310836722, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 90582691 and 90582700.

It is not a weakly prime, because it can be changed into another prime (90582131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45291365 + 45291366.

It is an arithmetic number, because the mean of its divisors is an integer number (45291366).

Almost surely, 2^90582731 is an apocalyptic number.

90582731 is a deficient number, since it is larger than the sum of its proper divisors (1).

90582731 is an equidigital number, since it uses as much as digits as its factorization.

90582731 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15120, while the sum is 35.

The square root of 90582731 is about 9517.4960467552. The cubic root of 90582731 is about 449.1055996383.

The spelling of 90582731 in words is "ninety million, five hundred eighty-two thousand, seven hundred thirty-one".