764221982 has 16 divisors (see below), whose sum is σ = 1184222592. Its totient is φ = 369500160.

The previous prime is 764221979. The next prime is 764222003. The reversal of 764221982 is 289122467.

764221982 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×764221982³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 92318 + ... + 100254.

It is an arithmetic number, because the mean of its divisors is an integer number (74013912).

Almost surely, 2^764221982 is an apocalyptic number.

764221982 is a deficient number, since it is larger than the sum of its proper divisors (420000610).

764221982 is a wasteful number, since it uses less digits than its factorization.

764221982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9523.

The product of its digits is 96768, while the sum is 41.

The square root of 764221982 is about 27644.5651439845. The cubic root of 764221982 is about 914.2672752815.

The spelling of 764221982 in words is "seven hundred sixty-four million, two hundred twenty-one thousand, nine hundred eighty-two".