7857113 has 4 divisors (see below), whose sum is σ = 8571408. Its totient is φ = 7142820.

The previous prime is 7857107. The next prime is 7857137. The reversal of 7857113 is 3117587.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 7857113 - 2¹⁰ = 7856089 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 7857113.

It is not an unprimeable number, because it can be changed into a prime (7857163) 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, 357131 + ... + 357152.

It is an arithmetic number, because the mean of its divisors is an integer number (2142852).

Almost surely, 2^7857113 is an apocalyptic number.

It is an amenable number.

7857113 is a deficient number, since it is larger than the sum of its proper divisors (714295).

7857113 is a wasteful number, since it uses less digits than its factorization.

7857113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 714294.

The product of its digits is 5880, while the sum is 32.

The square root of 7857113 is about 2803.0542270887. The cubic root of 7857113 is about 198.8021146778.

The spelling of 7857113 in words is "seven million, eight hundred fifty-seven thousand, one hundred thirteen".