764744955 has 16 divisors (see below), whose sum is σ = 1317714720. Its totient is φ = 376489728.

The previous prime is 764744923. The next prime is 764744987. The reversal of 764744955 is 559447467.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (764744923) and next prime (764744987).

It is not a de Polignac number, because 764744955 - 2⁵ = 764744923 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 764744898 and 764744907.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 1960690 + ... + 1961079.

It is an arithmetic number, because the mean of its divisors is an integer number (82357170).

Almost surely, 2^764744955 is an apocalyptic number.

764744955 is a deficient number, since it is larger than the sum of its proper divisors (552969765).

764744955 is a wasteful number, since it uses less digits than its factorization.

764744955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3921790.

The product of its digits is 4233600, while the sum is 51.

The square root of 764744955 is about 27654.0224018134. The cubic root of 764744955 is about 914.4757784329.

The spelling of 764744955 in words is "seven hundred sixty-four million, seven hundred forty-four thousand, nine hundred fifty-five".