707872157 has 2 divisors, whose sum is σ = 707872158. Its totient is φ = 707872156.

The previous prime is 707872141. The next prime is 707872211. The reversal of 707872157 is 751278707.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 651831961 + 56040196 = 25531^2 + 7486^2 .

It is a cyclic number.

It is not a de Polignac number, because 707872157 - 2⁴ = 707872141 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (707872117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 353936078 + 353936079.

It is an arithmetic number, because the mean of its divisors is an integer number (353936079).

Almost surely, 2^707872157 is an apocalyptic number.

It is an amenable number.

707872157 is a deficient number, since it is larger than the sum of its proper divisors (1).

707872157 is an equidigital number, since it uses as much as digits as its factorization.

707872157 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192080, while the sum is 44.

The square root of 707872157 is about 26605.8669657653. The cubic root of 707872157 is about 891.2200399343.

The spelling of 707872157 in words is "seven hundred seven million, eight hundred seventy-two thousand, one hundred fifty-seven".