90118607 has 4 divisors (see below), whose sum is σ = 90177120. Its totient is φ = 90060096.

The previous prime is 90118601. The next prime is 90118621. The reversal of 90118607 is 70681109.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 70681109 = 541 ⋅130649.

It is a cyclic number.

It is not a de Polignac number, because 90118607 - 2⁴ = 90118591 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90118601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26882 + ... + 30047.

It is an arithmetic number, because the mean of its divisors is an integer number (22544280).

Almost surely, 2^90118607 is an apocalyptic number.

90118607 is a deficient number, since it is larger than the sum of its proper divisors (58513).

90118607 is a wasteful number, since it uses less digits than its factorization.

90118607 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58512.

The product of its (nonzero) digits is 3024, while the sum is 32.

The square root of 90118607 is about 9493.0820601109. The cubic root of 90118607 is about 448.3372497120.

The spelling of 90118607 in words is "ninety million, one hundred eighteen thousand, six hundred seven".