764427479 has 4 divisors (see below), whose sum is σ = 765588120. Its totient is φ = 763266840.

The previous prime is 764427473. The next prime is 764427523. The reversal of 764427479 is 974724467.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 764427479 - 2¹⁶ = 764361943 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (764427473) 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, 579332 + ... + 580649.

It is an arithmetic number, because the mean of its divisors is an integer number (191397030).

Almost surely, 2^764427479 is an apocalyptic number.

764427479 is a deficient number, since it is larger than the sum of its proper divisors (1160641).

764427479 is a wasteful number, since it uses less digits than its factorization.

764427479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1160640.

The product of its digits is 2370816, while the sum is 50.

The square root of 764427479 is about 27648.2816645086. The cubic root of 764427479 is about 914.3492158473.

The spelling of 764427479 in words is "seven hundred sixty-four million, four hundred twenty-seven thousand, four hundred seventy-nine".