764143474 has 4 divisors (see below), whose sum is σ = 1146215214. Its totient is φ = 382071736.

The previous prime is 764143469. The next prime is 764143481. The reversal of 764143474 is 474341467.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 474341467 = 53 ⋅8949839.

It can be written as a sum of positive squares in only one way, i.e., 614692849 + 149450625 = 24793^2 + 12225^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 191035867 + ... + 191035870.

Almost surely, 2^764143474 is an apocalyptic number.

764143474 is a deficient number, since it is larger than the sum of its proper divisors (382071740).

764143474 is a wasteful number, since it uses less digits than its factorization.

764143474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 382071739.

The product of its digits is 225792, while the sum is 40.

The square root of 764143474 is about 27643.1451539075. The cubic root of 764143474 is about 914.2359668594.

It can be divided in two parts, 7641 and 43474, that added together give a palindrome (51115).

The spelling of 764143474 in words is "seven hundred sixty-four million, one hundred forty-three thousand, four hundred seventy-four".