764216231 has 2 divisors, whose sum is σ = 764216232. Its totient is φ = 764216230.

The previous prime is 764216227. The next prime is 764216237. The reversal of 764216231 is 132612467.

764216231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 764216231 - 2² = 764216227 is a prime.

It is a super-2 number, since 2×764216231² = 1168052895447690722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (764216237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 382108115 + 382108116.

It is an arithmetic number, because the mean of its divisors is an integer number (382108116).

Almost surely, 2^764216231 is an apocalyptic number.

764216231 is a deficient number, since it is larger than the sum of its proper divisors (1).

764216231 is an equidigital number, since it uses as much as digits as its factorization.

764216231 is an odious number, because the sum of its binary digits is odd.

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

The square root of 764216231 is about 27644.4611269600. The cubic root of 764216231 is about 914.2649818971.

Adding to 764216231 its reverse (132612467), we get a palindrome (896828698).

The spelling of 764216231 in words is "seven hundred sixty-four million, two hundred sixteen thousand, two hundred thirty-one".