90777497 has 8 divisors (see below), whose sum is σ = 95676000. Its totient is φ = 85891104.

The previous prime is 90777493. The next prime is 90777529. The reversal of 90777497 is 79477709.

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 90777497 - 2² = 90777493 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90777493) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15254 + ... + 20352.

It is an arithmetic number, because the mean of its divisors is an integer number (11959500).

Almost surely, 2^90777497 is an apocalyptic number.

It is an amenable number.

90777497 is a deficient number, since it is larger than the sum of its proper divisors (4898503).

90777497 is a wasteful number, since it uses less digits than its factorization.

90777497 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6055.

The product of its (nonzero) digits is 777924, while the sum is 50.

The square root of 90777497 is about 9527.7225505364. The cubic root of 90777497 is about 449.4272499264.

The spelling of 90777497 in words is "ninety million, seven hundred seventy-seven thousand, four hundred ninety-seven".