90245797 has 8 divisors (see below), whose sum is σ = 92679552. Its totient is φ = 87823200.

The previous prime is 90245791. The next prime is 90245891. The reversal of 90245797 is 79754209.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 90245797 - 2³ = 90245789 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90245791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15118 + ... + 20224.

It is an arithmetic number, because the mean of its divisors is an integer number (11584944).

Almost surely, 2^90245797 is an apocalyptic number.

It is an amenable number.

90245797 is a deficient number, since it is larger than the sum of its proper divisors (2433755).

90245797 is a wasteful number, since it uses less digits than its factorization.

90245797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5579.

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

The square root of 90245797 is about 9499.7787868981. The cubic root of 90245797 is about 448.5480726506.

The spelling of 90245797 in words is "ninety million, two hundred forty-five thousand, seven hundred ninety-seven".