90602613 has 12 divisors (see below), whose sum is σ = 131871168. Its totient is φ = 59939880.

The previous prime is 90602593. The next prime is 90602657. The reversal of 90602613 is 31620609.

It is a happy number.

It is not a de Polignac number, because 90602613 - 2⁹ = 90602101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90602683) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 37245 + ... + 39602.

It is an arithmetic number, because the mean of its divisors is an integer number (10989264).

Almost surely, 2^90602613 is an apocalyptic number.

It is an amenable number.

90602613 is a deficient number, since it is larger than the sum of its proper divisors (41268555).

90602613 is a wasteful number, since it uses less digits than its factorization.

90602613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76984 (or 76981 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The square root of 90602613 is about 9518.5404868604. The cubic root of 90602613 is about 449.1384552913.

The spelling of 90602613 in words is "ninety million, six hundred two thousand, six hundred thirteen".