764461013 has 2 divisors, whose sum is σ = 764461014. Its totient is φ = 764461012.

The previous prime is 764460973. The next prime is 764461043. The reversal of 764461013 is 310164467.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 704212369 + 60248644 = 26537^2 + 7762^2 .

It is a cyclic number.

It is not a de Polignac number, because 764461013 - 2⁸ = 764460757 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (764461043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 382230506 + 382230507.

It is an arithmetic number, because the mean of its divisors is an integer number (382230507).

Almost surely, 2^764461013 is an apocalyptic number.

It is an amenable number.

764461013 is a deficient number, since it is larger than the sum of its proper divisors (1).

764461013 is an equidigital number, since it uses as much as digits as its factorization.

764461013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 32.

The square root of 764461013 is about 27648.8880969923. Note that the first 3 decimals coincide. The cubic root of 764461013 is about 914.3625859136.

The spelling of 764461013 in words is "seven hundred sixty-four million, four hundred sixty-one thousand, thirteen".