613808090 has 64 divisors (see below), whose sum is σ = 1292530176. Its totient is φ = 205535232.

The previous prime is 613808077. The next prime is 613808099. The reversal of 613808090 is 90808316.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 613808090.

It is not an unprimeable number, because it can be changed into a prime (613808099) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 576899 + ... + 577961.

It is an arithmetic number, because the mean of its divisors is an integer number (20195784).

Almost surely, 2^613808090 is an apocalyptic number.

613808090 is an abundant number, since it is smaller than the sum of its proper divisors (678722086).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

613808090 is a wasteful number, since it uses less digits than its factorization.

613808090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1263.

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 613808090 is about 24775.1506554451. The cubic root of 613808090 is about 849.8537649237.

The spelling of 613808090 in words is "six hundred thirteen million, eight hundred eight thousand, ninety".