683608157 has 2 divisors, whose sum is σ = 683608158. Its totient is φ = 683608156.

The previous prime is 683608117. The next prime is 683608171. The reversal of 683608157 is 751806386.

683608157 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 620707396 + 62900761 = 24914^2 + 7931^2 .

It is a cyclic number.

It is not a de Polignac number, because 683608157 - 2²⁶ = 616499293 is a prime.

It is a super-2 number, since 2×683608157² = 934640224633873298, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (683608117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 341804078 + 341804079.

It is an arithmetic number, because the mean of its divisors is an integer number (341804079).

Almost surely, 2^683608157 is an apocalyptic number.

It is an amenable number.

683608157 is a deficient number, since it is larger than the sum of its proper divisors (1).

683608157 is an equidigital number, since it uses as much as digits as its factorization.

683608157 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 241920, while the sum is 44.

The square root of 683608157 is about 26145.9013422754. The cubic root of 683608157 is about 880.9185299863.

The spelling of 683608157 in words is "six hundred eighty-three million, six hundred eight thousand, one hundred fifty-seven".