7856908093 has 4 divisors (see below), whose sum is σ = 7861968828. Its totient is φ = 7851847360.

The previous prime is 7856908061. The next prime is 7856908121. The reversal of 7856908093 is 3908096587.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3908096587 = 577 ⋅6773131.

It can be written as a sum of positive squares in 2 ways, for example, as 301300164 + 7555607929 = 17358^2 + 86923^2 .

It is a cyclic number.

It is not a de Polignac number, because 7856908093 - 2⁵ = 7856908061 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 (7856908043) 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, 2528038 + ... + 2531143.

It is an arithmetic number, because the mean of its divisors is an integer number (1965492207).

Almost surely, 2^7856908093 is an apocalyptic number.

It is an amenable number.

7856908093 is a deficient number, since it is larger than the sum of its proper divisors (5060735).

7856908093 is a wasteful number, since it uses less digits than its factorization.

7856908093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5060734.

The product of its (nonzero) digits is 3265920, while the sum is 55.

The square root of 7856908093 is about 88639.2017845377. The cubic root of 7856908093 is about 1988.0038646459.

The spelling of 7856908093 in words is "seven billion, eight hundred fifty-six million, nine hundred eight thousand, ninety-three".