90825761 has 16 divisors (see below), whose sum is σ = 102246144. Its totient is φ = 80123904.

The previous prime is 90825743. The next prime is 90825793. The reversal of 90825761 is 16752809.

It is a cyclic number.

It is not a de Polignac number, because 90825761 - 2⁶ = 90825697 is a prime.

It is a super-2 number, since 2×90825761² = 16498637722458242, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (90825461) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24545 + ... + 28001.

It is an arithmetic number, because the mean of its divisors is an integer number (6390384).

Almost surely, 2^90825761 is an apocalyptic number.

It is an amenable number.

90825761 is a deficient number, since it is larger than the sum of its proper divisors (11420383).

90825761 is a wasteful number, since it uses less digits than its factorization.

90825761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3560.

The product of its (nonzero) digits is 30240, while the sum is 38.

The square root of 90825761 is about 9530.2550333136. The cubic root of 90825761 is about 449.5068853517.

The spelling of 90825761 in words is "ninety million, eight hundred twenty-five thousand, seven hundred sixty-one".