156797 has 2 divisors, whose sum is σ = 156798. Its totient is φ = 156796.

The previous prime is 156781. The next prime is 156799. The reversal of 156797 is 797651.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 151321 + 5476 = 389^2 + 74^2 .

It is a cyclic number.

It is not a de Polignac number, because 156797 - 2⁴ = 156781 is a prime.

Together with 156799, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (156799) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 78398 + 78399.

It is an arithmetic number, because the mean of its divisors is an integer number (78399).

2¹⁵⁶⁷⁹⁷ is an apocalyptic number.

It is an amenable number.

156797 is a deficient number, since it is larger than the sum of its proper divisors (1).

156797 is an equidigital number, since it uses as much as digits as its factorization.

156797 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13230, while the sum is 35.

The square root of 156797 is about 395.9760093743. The cubic root of 156797 is about 53.9236460903.

The spelling of 156797 in words is "one hundred fifty-six thousand, seven hundred ninety-seven".