764248343 has 4 divisors (see below), whose sum is σ = 804471960. Its totient is φ = 724024728.

The previous prime is 764248333. The next prime is 764248351. The reversal of 764248343 is 343842467.

It is a happy number.

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 764248343 - 2²² = 760054039 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 764248343.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (764248333) 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, 20111780 + ... + 20111817.

It is an arithmetic number, because the mean of its divisors is an integer number (201117990).

Almost surely, 2^764248343 is an apocalyptic number.

764248343 is a deficient number, since it is larger than the sum of its proper divisors (40223617).

764248343 is a wasteful number, since it uses less digits than its factorization.

764248343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40223616.

The product of its digits is 387072, while the sum is 41.

The square root of 764248343 is about 27645.0419243668. The cubic root of 764248343 is about 914.2777873766.

The spelling of 764248343 in words is "seven hundred sixty-four million, two hundred forty-eight thousand, three hundred forty-three".