90654601 has 4 divisors (see below), whose sum is σ = 92140804. Its totient is φ = 89168400.

The previous prime is 90654593. The next prime is 90654617. The reversal of 90654601 is 10645609.

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 30514576 + 60140025 = 5524^2 + 7755^2 .

It is a cyclic number.

It is not a de Polignac number, because 90654601 - 2³ = 90654593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (90654631) 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, 743010 + ... + 743131.

It is an arithmetic number, because the mean of its divisors is an integer number (23035201).

Almost surely, 2^90654601 is an apocalyptic number.

It is an amenable number.

90654601 is a deficient number, since it is larger than the sum of its proper divisors (1486203).

90654601 is a wasteful number, since it uses less digits than its factorization.

90654601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1486202.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 90654601 is about 9521.2709760830. The cubic root of 90654601 is about 449.2243444454.

The spelling of 90654601 in words is "ninety million, six hundred fifty-four thousand, six hundred one".