761643416 has 8 divisors (see below), whose sum is σ = 1428081420. Its totient is φ = 380821704.

The previous prime is 761643403. The next prime is 761643419. The reversal of 761643416 is 614346167.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×761643416² = 1160201386272298112, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 761643416.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (761643419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 47602706 + ... + 47602721.

Almost surely, 2^761643416 is an apocalyptic number.

It is an amenable number.

761643416 is a deficient number, since it is larger than the sum of its proper divisors (666438004).

761643416 is a wasteful number, since it uses less digits than its factorization.

761643416 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95205433 (or 95205429 counting only the distinct ones).

The product of its digits is 72576, while the sum is 38.

The square root of 761643416 is about 27597.8878901991. The cubic root of 761643416 is about 913.2378383590.

The spelling of 761643416 in words is "seven hundred sixty-one million, six hundred forty-three thousand, four hundred sixteen".