90716899 has 32 divisors (see below), whose sum is σ = 118056960. Its totient is φ = 67744512.

The previous prime is 90716891. The next prime is 90716903. The reversal of 90716899 is 99861709.

It is a cyclic number.

It is not a de Polignac number, because 90716899 - 2³ = 90716891 is a prime.

It is not an unprimeable number, because it can be changed into a prime (90716891) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 186034 + ... + 186520.

It is an arithmetic number, because the mean of its divisors is an integer number (3689280).

Almost surely, 2^90716899 is an apocalyptic number.

90716899 is a deficient number, since it is larger than the sum of its proper divisors (27340061).

90716899 is a wasteful number, since it uses less digits than its factorization.

90716899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 619.

The product of its (nonzero) digits is 244944, while the sum is 49.

The square root of 90716899 is about 9524.5419312427. The cubic root of 90716899 is about 449.3272234673.

The spelling of 90716899 in words is "ninety million, seven hundred sixteen thousand, eight hundred ninety-nine".