90606907 has 4 divisors (see below), whose sum is σ = 91013440. Its totient is φ = 90200376.

The previous prime is 90606883. The next prime is 90606911. The reversal of 90606907 is 70960609.

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

It is a cyclic number.

It is not a de Polignac number, because 90606907 - 2¹¹ = 90604859 is a prime.

It is a super-2 number, since 2×90606907² = 16419223192213298, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90600907) 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, 202932 + ... + 203377.

It is an arithmetic number, because the mean of its divisors is an integer number (22753360).

Almost surely, 2^90606907 is an apocalyptic number.

90606907 is a deficient number, since it is larger than the sum of its proper divisors (406533).

90606907 is a wasteful number, since it uses less digits than its factorization.

90606907 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 406532.

The product of its (nonzero) digits is 20412, while the sum is 37.

The square root of 90606907 is about 9518.7660439786. The cubic root of 90606907 is about 449.1455506351.

The spelling of 90606907 in words is "ninety million, six hundred six thousand, nine hundred seven".