715777213 has 2 divisors, whose sum is σ = 715777214. Its totient is φ = 715777212.

The previous prime is 715777211. The next prime is 715777219. The reversal of 715777213 is 312777517.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 699761209 + 16016004 = 26453^2 + 4002^2 .

It is a cyclic number.

It is not a de Polignac number, because 715777213 - 2¹ = 715777211 is a prime.

Together with 715777211, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (715777211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 357888606 + 357888607.

It is an arithmetic number, because the mean of its divisors is an integer number (357888607).

Almost surely, 2^715777213 is an apocalyptic number.

It is an amenable number.

715777213 is a deficient number, since it is larger than the sum of its proper divisors (1).

715777213 is an equidigital number, since it uses as much as digits as its factorization.

715777213 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 72030, while the sum is 40.

The square root of 715777213 is about 26754.0130260864. The cubic root of 715777213 is about 894.5252886572.

The spelling of 715777213 in words is "seven hundred fifteen million, seven hundred seventy-seven thousand, two hundred thirteen".