764643675 has 54 divisors (see below), whose sum is σ = 1319113116. Its totient is φ = 390823200.

The previous prime is 764643661. The next prime is 764643689. The reversal of 764643675 is 576346467.

It is an interprime number because it is at equal distance from previous prime (764643661) and next prime (764643689).

It is not a de Polignac number, because 764643675 - 2⁷ = 764643547 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 53 ways as a sum of consecutive naturals, for example, 7423674 + ... + 7423776.

Almost surely, 2^764643675 is an apocalyptic number.

764643675 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

764643675 is a deficient number, since it is larger than the sum of its proper divisors (554469441).

764643675 is a wasteful number, since it uses less digits than its factorization.

764643675 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 281 (or 142 counting only the distinct ones).

The product of its digits is 2540160, while the sum is 48.

The square root of 764643675 is about 27652.1911428371. The cubic root of 764643675 is about 914.4354067180.

Multiplying 764643675 by its sum of digits (48), we get a square (36702896400 = 191580²).

The spelling of 764643675 in words is "seven hundred sixty-four million, six hundred forty-three thousand, six hundred seventy-five".