90613277 has 2 divisors, whose sum is σ = 90613278. Its totient is φ = 90613276.

The previous prime is 90613273. The next prime is 90613283. The reversal of 90613277 is 77231609.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 86508601 + 4104676 = 9301^2 + 2026^2 .

It is a cyclic number.

It is not a de Polignac number, because 90613277 - 2² = 90613273 is a prime.

It is a super-3 number, since 3×90613277³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90613273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45306638 + 45306639.

It is an arithmetic number, because the mean of its divisors is an integer number (45306639).

Almost surely, 2^90613277 is an apocalyptic number.

It is an amenable number.

90613277 is a deficient number, since it is larger than the sum of its proper divisors (1).

90613277 is an equidigital number, since it uses as much as digits as its factorization.

90613277 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15876, while the sum is 35.

The square root of 90613277 is about 9519.1006402916. The cubic root of 90613277 is about 449.1560759184.

The spelling of 90613277 in words is "ninety million, six hundred thirteen thousand, two hundred seventy-seven".