1964694674 has 4 divisors (see below), whose sum is σ = 2947042014. Its totient is φ = 982347336.

The previous prime is 1964694659. The next prime is 1964694701. The reversal of 1964694674 is 4764964691.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 1148735449 + 815959225 = 33893^2 + 28565^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 491173667 + ... + 491173670.

Almost surely, 2^1964694674 is an apocalyptic number.

1964694674 is a deficient number, since it is larger than the sum of its proper divisors (982347340).

1964694674 is an equidigital number, since it uses as much as digits as its factorization.

1964694674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 982347339.

The product of its digits is 7838208, while the sum is 56.

The square root of 1964694674 is about 44324.8764690890. The cubic root of 1964694674 is about 1252.4633394980.

The spelling of 1964694674 in words is "one billion, nine hundred sixty-four million, six hundred ninety-four thousand, six hundred seventy-four".