77263664 has 10 divisors (see below), whose sum is σ = 149698380. Its totient is φ = 38631824.

The previous prime is 77263661. The next prime is 77263673. The reversal of 77263664 is 46636277.

It is not an unprimeable number, because it can be changed into a prime (77263661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2414474 + ... + 2414505.

It is an arithmetic number, because the mean of its divisors is an integer number (14969838).

Almost surely, 2^77263664 is an apocalyptic number.

It is an amenable number.

77263664 is a deficient number, since it is larger than the sum of its proper divisors (72434716).

77263664 is a wasteful number, since it uses less digits than its factorization.

77263664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4828987 (or 4828981 counting only the distinct ones).

The product of its digits is 254016, while the sum is 41.

The square root of 77263664 is about 8789.9751990549. The cubic root of 77263664 is about 425.9171225992.

The spelling of 77263664 in words is "seventy-seven million, two hundred sixty-three thousand, six hundred sixty-four".