77406748 has 6 divisors (see below), whose sum is σ = 135461816. Its totient is φ = 38703372.

The previous prime is 77406739. The next prime is 77406767. The reversal of 77406748 is 84760477.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9675840 + ... + 9675847.

Almost surely, 2^77406748 is an apocalyptic number.

It is an amenable number.

77406748 is a deficient number, since it is larger than the sum of its proper divisors (58055068).

77406748 is a wasteful number, since it uses less digits than its factorization.

77406748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19351691 (or 19351689 counting only the distinct ones).

The product of its (nonzero) digits is 263424, while the sum is 43.

The square root of 77406748 is about 8798.1104789608. The cubic root of 77406748 is about 426.1798780428.

The spelling of 77406748 in words is "seventy-seven million, four hundred six thousand, seven hundred forty-eight".