90296787 has 16 divisors (see below), whose sum is σ = 138314240. Its totient is φ = 51328512.

The previous prime is 90296783. The next prime is 90296803. The reversal of 90296787 is 78769209.

It is not a de Polignac number, because 90296787 - 2² = 90296783 is a prime.

It is a super-4 number, since 4×90296787⁴ (a number of 33 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90296783) 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, 7087 + ... + 15192.

It is an arithmetic number, because the mean of its divisors is an integer number (8644640).

Almost surely, 2^90296787 is an apocalyptic number.

90296787 is a deficient number, since it is larger than the sum of its proper divisors (48017453).

90296787 is a wasteful number, since it uses less digits than its factorization.

90296787 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22482.

The product of its (nonzero) digits is 381024, while the sum is 48.

The square root of 90296787 is about 9502.4621546208. The cubic root of 90296787 is about 448.6325351621.

The spelling of 90296787 in words is "ninety million, two hundred ninety-six thousand, seven hundred eighty-seven".