761649604 has 9 divisors (see below), whose sum is σ = 1332983407. Its totient is φ = 380797204.

The previous prime is 761649601. The next prime is 761649613. The reversal of 761649604 is 406946167.

The square root of 761649604 is 27598.

It is a perfect power (a square), and thus also a powerful number.

It is a super-2 number, since 2×761649604² = 1160220238546713632, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (761649601) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 48297 + ... + 62095.

Almost surely, 2^761649604 is an apocalyptic number.

761649604 is the 27598-th square number.

It is an amenable number.

761649604 is a deficient number, since it is larger than the sum of its proper divisors (571333803).

761649604 is an frugal number, since it uses more digits than its factorization.

761649604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27602 (or 13801 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 43.

The cubic root of 761649604 is about 913.2403115638.

The spelling of 761649604 in words is "seven hundred sixty-one million, six hundred forty-nine thousand, six hundred four".