756901213 has 2 divisors, whose sum is σ = 756901214. Its totient is φ = 756901212.

The previous prime is 756901169. The next prime is 756901219. The reversal of 756901213 is 312109657.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 387223684 + 369677529 = 19678^2 + 19227^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-756901213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (756901219) 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, 378450606 + 378450607.

It is an arithmetic number, because the mean of its divisors is an integer number (378450607).

Almost surely, 2^756901213 is an apocalyptic number.

It is an amenable number.

756901213 is a deficient number, since it is larger than the sum of its proper divisors (1).

756901213 is an equidigital number, since it uses as much as digits as its factorization.

756901213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11340, while the sum is 34.

The square root of 756901213 is about 27511.8376885296. The cubic root of 756901213 is about 911.3385337261.

The spelling of 756901213 in words is "seven hundred fifty-six million, nine hundred one thousand, two hundred thirteen".