764011231 has 4 divisors (see below), whose sum is σ = 764084464. Its totient is φ = 763938000.

The previous prime is 764011219. The next prime is 764011253. The reversal of 764011231 is 132110467.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 132110467 = 47 ⋅2810861.

It is a cyclic number.

It is not a de Polignac number, because 764011231 - 2⁷ = 764011103 is a prime.

It is a super-2 number, since 2×764011231² = 1167426322188270722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 764011196 and 764011205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (764011531) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17715 + ... + 42916.

It is an arithmetic number, because the mean of its divisors is an integer number (191021116).

Almost surely, 2^764011231 is an apocalyptic number.

764011231 is a deficient number, since it is larger than the sum of its proper divisors (73233).

764011231 is a wasteful number, since it uses less digits than its factorization.

764011231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73232.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 764011231 is about 27640.7530830837. The cubic root of 764011231 is about 914.1832244595.

Adding to 764011231 its reverse (132110467), we get a palindrome (896121698).

The spelling of 764011231 in words is "seven hundred sixty-four million, eleven thousand, two hundred thirty-one".