7918045 has 8 divisors (see below), whose sum is σ = 9537624. Its totient is φ = 6310464.

The previous prime is 7917997. The next prime is 7918081. The reversal of 7918045 is 5408197.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 267289 + 7650756 = 517^2 + 2766^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7918045 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 7918045.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1474 + ... + 4243.

It is an arithmetic number, because the mean of its divisors is an integer number (1192203).

Almost surely, 2^7918045 is an apocalyptic number.

It is an amenable number.

7918045 is a deficient number, since it is larger than the sum of its proper divisors (1619579).

7918045 is a wasteful number, since it uses less digits than its factorization.

7918045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5999.

The product of its (nonzero) digits is 10080, while the sum is 34.

The square root of 7918045 is about 2813.9020949564. The cubic root of 7918045 is about 199.3146961418.

It can be divided in two parts, 791 and 8045, that added together give a square (8836 = 94²).

The spelling of 7918045 in words is "seven million, nine hundred eighteen thousand, forty-five".