76841730 has 128 divisors (see below), whose sum is σ = 236966400. Its totient is φ = 17356032.

The previous prime is 76841671. The next prime is 76841741. The reversal of 76841730 is 3714867.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 205824 + ... + 206196.

It is an arithmetic number, because the mean of its divisors is an integer number (1851300).

Almost surely, 2^76841730 is an apocalyptic number.

76841730 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 76841730, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (118483200).

76841730 is an abundant number, since it is smaller than the sum of its proper divisors (160124670).

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

76841730 is a wasteful number, since it uses less digits than its factorization.

76841730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 505 (or 499 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 36.

The square root of 76841730 is about 8765.9414782441. The cubic root of 76841730 is about 425.1404011328.

The spelling of 76841730 in words is "seventy-six million, eight hundred forty-one thousand, seven hundred thirty".