90275497 has 4 divisors (see below), whose sum is σ = 97219780. Its totient is φ = 83331216.

The previous prime is 90275489. The next prime is 90275509. The reversal of 90275497 is 79457209.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7901721 + 82373776 = 2811^2 + 9076^2 .

It is a cyclic number.

It is not a de Polignac number, because 90275497 - 2³ = 90275489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90275417) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3472122 + ... + 3472147.

It is an arithmetic number, because the mean of its divisors is an integer number (24304945).

Almost surely, 2^90275497 is an apocalyptic number.

It is an amenable number.

90275497 is a deficient number, since it is larger than the sum of its proper divisors (6944283).

90275497 is a wasteful number, since it uses less digits than its factorization.

90275497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6944282.

The product of its (nonzero) digits is 158760, while the sum is 43.

The square root of 90275497 is about 9501.3418526017. The cubic root of 90275497 is about 448.5972731565.

The spelling of 90275497 in words is "ninety million, two hundred seventy-five thousand, four hundred ninety-seven".