5091618 has 16 divisors (see below), whose sum is σ = 11638080. Its totient is φ = 1454736.

The previous prime is 5091613. The next prime is 5091637. The reversal of 5091618 is 8161905.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (5091613) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60573 + ... + 60656.

It is an arithmetic number, because the mean of its divisors is an integer number (727380).

Almost surely, 2^5091618 is an apocalyptic number.

5091618 is an abundant number, since it is smaller than the sum of its proper divisors (6546462).

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

5091618 is a wasteful number, since it uses less digits than its factorization.

5091618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121241.

The product of its (nonzero) digits is 2160, while the sum is 30.

The square root of 5091618 is about 2256.4613889894. The cubic root of 5091618 is about 172.0357100904.

The spelling of 5091618 in words is "five million, ninety-one thousand, six hundred eighteen".