764213706 has 24 divisors (see below), whose sum is σ = 1742944320. Its totient is φ = 241330536.

The previous prime is 764213701. The next prime is 764213707. The reversal of 764213706 is 607312467.

764213706 is a `hidden beast` number, since 7 + 642 + 1 + 3 + 7 + 0 + 6 = 666.

It is a super-3 number, since 3×764213706³ (a number of 28 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (764213701) 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 in 11 ways as a sum of consecutive naturals, for example, 1116930 + ... + 1117613.

It is an arithmetic number, because the mean of its divisors is an integer number (72622680).

Almost surely, 2^764213706 is an apocalyptic number.

764213706 is an abundant number, since it is smaller than the sum of its proper divisors (978730614).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

764213706 is a wasteful number, since it uses less digits than its factorization.

764213706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2234570 (or 2234567 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 36.

The square root of 764213706 is about 27644.4154577376. The cubic root of 764213706 is about 914.2639749737.

The spelling of 764213706 in words is "seven hundred sixty-four million, two hundred thirteen thousand, seven hundred six".