761399057 has 2 divisors, whose sum is σ = 761399058. Its totient is φ = 761399056.

The previous prime is 761399047. The next prime is 761399099. The reversal of 761399057 is 750993167.

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., 439698961 + 321700096 = 20969^2 + 17936^2 .

It is a cyclic number.

It is not a de Polignac number, because 761399057 - 2⁶ = 761398993 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (761399047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 380699528 + 380699529.

It is an arithmetic number, because the mean of its divisors is an integer number (380699529).

Almost surely, 2^761399057 is an apocalyptic number.

It is an amenable number.

761399057 is a deficient number, since it is larger than the sum of its proper divisors (1).

761399057 is an equidigital number, since it uses as much as digits as its factorization.

761399057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 357210, while the sum is 47.

The square root of 761399057 is about 27593.4604027838. The cubic root of 761399057 is about 913.1401628371.

The spelling of 761399057 in words is "seven hundred sixty-one million, three hundred ninety-nine thousand, fifty-seven".