7912913 has 4 divisors (see below), whose sum is σ = 7947108. Its totient is φ = 7878720.

The previous prime is 7912909. The next prime is 7912937. The reversal of 7912913 is 3192197.

It is a happy number.

7912913 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3192197 = 257 ⋅12421.

It can be written as a sum of positive squares in 2 ways, for example, as 906304 + 7006609 = 952^2 + 2647^2 .

It is a cyclic number.

It is not a de Polignac number, because 7912913 - 2² = 7912909 is a prime.

It is a super-2 number, since 2×7912913² = 125228384291138, which contains 22 as substring.

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 7912913.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7912013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16748 + ... + 17213.

It is an arithmetic number, because the mean of its divisors is an integer number (1986777).

Almost surely, 2^7912913 is an apocalyptic number.

It is an amenable number.

7912913 is a deficient number, since it is larger than the sum of its proper divisors (34195).

7912913 is a wasteful number, since it uses less digits than its factorization.

7912913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34194.

The product of its digits is 3402, while the sum is 32.

The square root of 7912913 is about 2812.9900461964. The cubic root of 7912913 is about 199.2716255737.

The spelling of 7912913 in words is "seven million, nine hundred twelve thousand, nine hundred thirteen".