715397 has 2 divisors, whose sum is σ = 715398. Its totient is φ = 715396.

The previous prime is 715373. The next prime is 715417. The reversal of 715397 is 793517.

715397 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., 454276 + 261121 = 674^2 + 511^2 .

It is an emirp because it is prime and its reverse (793517) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-715397 is a prime.

It is a Chen prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (715357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 357698 + 357699.

It is an arithmetic number, because the mean of its divisors is an integer number (357699).

2⁷¹⁵³⁹⁷ is an apocalyptic number.

It is an amenable number.

715397 is a deficient number, since it is larger than the sum of its proper divisors (1).

715397 is an equidigital number, since it uses as much as digits as its factorization.

715397 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6615, while the sum is 32.

The square root of 715397 is about 845.8114447086. The cubic root of 715397 is about 89.4366873266.

The spelling of 715397 in words is "seven hundred fifteen thousand, three hundred ninety-seven".