77069748 has 36 divisors (see below), whose sum is σ = 209190912. Its totient is φ = 22019760.

The previous prime is 77069731. The next prime is 77069771. The reversal of 77069748 is 84796077.

It is a junction number, because it is equal to n+sod(n) for n = 77069697 and 77069706.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 64948 + ... + 66123.

Almost surely, 2^77069748 is an apocalyptic number.

It is an amenable number.

77069748 is an abundant number, since it is smaller than the sum of its proper divisors (132121164).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

77069748 is a wasteful number, since it uses less digits than its factorization.

77069748 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131092 (or 131083 counting only the distinct ones).

The product of its (nonzero) digits is 592704, while the sum is 48.

The square root of 77069748 is about 8778.9377489535. The cubic root of 77069748 is about 425.5605024518.

The spelling of 77069748 in words is "seventy-seven million, sixty-nine thousand, seven hundred forty-eight".