77449516 has 6 divisors (see below), whose sum is σ = 135536660. Its totient is φ = 38724756.

The previous prime is 77449499. The next prime is 77449523. The reversal of 77449516 is 61594477.

It is an unprimeable number.

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, 9681186 + ... + 9681193.

Almost surely, 2^77449516 is an apocalyptic number.

It is an amenable number.

77449516 is a deficient number, since it is larger than the sum of its proper divisors (58087144).

77449516 is a wasteful number, since it uses less digits than its factorization.

77449516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19362383 (or 19362381 counting only the distinct ones).

The product of its digits is 211680, while the sum is 43.

The square root of 77449516 is about 8800.5406652092. The cubic root of 77449516 is about 426.2583531356.

The spelling of 77449516 in words is "seventy-seven million, four hundred forty-nine thousand, five hundred sixteen".