7618013 has 6 divisors (see below), whose sum is σ = 8249274. Its totient is φ = 7031856.

The previous prime is 7618003. The next prime is 7618019. The reversal of 7618013 is 3108167.

7618013 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 11449 + 7606564 = 107^2 + 2758^2 .

It is not a de Polignac number, because 7618013 - 2⁶ = 7617949 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 (7618019) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 22370 + ... + 22707.

It is an arithmetic number, because the mean of its divisors is an integer number (1374879).

Almost surely, 2^7618013 is an apocalyptic number.

It is an amenable number.

7618013 is a deficient number, since it is larger than the sum of its proper divisors (631261).

7618013 is a wasteful number, since it uses less digits than its factorization.

7618013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45103 (or 45090 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 7618013 is about 2760.0748178265. The cubic root of 7618013 is about 196.7647220817.

The spelling of 7618013 in words is "seven million, six hundred eighteen thousand, thirteen".