77480464 has 20 divisors (see below), whose sum is σ = 150340204. Its totient is φ = 38683008.

The previous prime is 77480449. The next prime is 77480467. The reversal of 77480464 is 46408477.

It can be written as a sum of positive squares in 2 ways, for example, as 17572864 + 59907600 = 4192^2 + 7740^2 .

It is not an unprimeable number, because it can be changed into a prime (77480467) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8914 + ... + 15310.

Almost surely, 2^77480464 is an apocalyptic number.

It is an amenable number.

77480464 is a deficient number, since it is larger than the sum of its proper divisors (72859740).

77480464 is a wasteful number, since it uses less digits than its factorization.

77480464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7162 (or 7156 counting only the distinct ones).

The product of its (nonzero) digits is 150528, while the sum is 40.

The square root of 77480464 is about 8802.2987906569. The cubic root of 77480464 is about 426.3151216711.

The spelling of 77480464 in words is "seventy-seven million, four hundred eighty thousand, four hundred sixty-four".