90967697 has 4 divisors (see below), whose sum is σ = 96318756. Its totient is φ = 85616640.

The previous prime is 90967651. The next prime is 90967699. The reversal of 90967697 is 79676909.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 74718736 + 16248961 = 8644^2 + 4031^2 .

It is a cyclic number.

It is not a de Polignac number, because 90967697 - 2⁶ = 90967633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90967699) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2675504 + ... + 2675537.

It is an arithmetic number, because the mean of its divisors is an integer number (24079689).

Almost surely, 2^90967697 is an apocalyptic number.

It is an amenable number.

90967697 is a deficient number, since it is larger than the sum of its proper divisors (5351059).

90967697 is a wasteful number, since it uses less digits than its factorization.

90967697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5351058.

The product of its (nonzero) digits is 1285956, while the sum is 53.

The square root of 90967697 is about 9537.6987266321. The cubic root of 90967697 is about 449.7409158835.

The spelling of 90967697 in words is "ninety million, nine hundred sixty-seven thousand, six hundred ninety-seven".