76698720 has 216 divisors, whose sum is σ = 304746624. Its totient is φ = 17515008.

The previous prime is 76698701. The next prime is 76698733. The reversal of 76698720 is 2789667.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 70017 + ... + 71103.

It is an arithmetic number, because the mean of its divisors is an integer number (1410864).

Almost surely, 2^76698720 is an apocalyptic number.

76698720 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 76698720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (152373312).

76698720 is an abundant number, since it is smaller than the sum of its proper divisors (228047904).

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

76698720 is a wasteful number, since it uses less digits than its factorization.

76698720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1122 (or 1104 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 45.

The square root of 76698720 is about 8757.7805407535. The cubic root of 76698720 is about 424.8764946779.

The spelling of 76698720 in words is "seventy-six million, six hundred ninety-eight thousand, seven hundred twenty".