76747740 has 48 divisors (see below), whose sum is σ = 215405568. Its totient is φ = 20417344.

The previous prime is 76747729. The next prime is 76747753. The reversal of 76747740 is 4774767.

It is a junction number, because it is equal to n+sod(n) for n = 76747692 and 76747701.

It is a congruent number.

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 in 15 ways as a sum of consecutive naturals, for example, 28909 + ... + 31451.

It is an arithmetic number, because the mean of its divisors is an integer number (4487616).

Almost surely, 2^76747740 is an apocalyptic number.

It is an amenable number.

76747740 is an abundant number, since it is smaller than the sum of its proper divisors (138657828).

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

76747740 is a wasteful number, since it uses less digits than its factorization.

76747740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3058 (or 3056 counting only the distinct ones).

The product of its (nonzero) digits is 230496, while the sum is 42.

The square root of 76747740 is about 8760.5787480052. The cubic root of 76747740 is about 424.9669916694.

The spelling of 76747740 in words is "seventy-six million, seven hundred forty-seven thousand, seven hundred forty".