76799970 has 96 divisors (see below), whose sum is σ = 220422384. Its totient is φ = 18432000.

The previous prime is 76799963. The next prime is 76799971. The reversal of 76799970 is 7999767.

It can be written as a sum of positive squares in 8 ways, for example, as 24830289 + 51969681 = 4983^2 + 7209^2 .

It is not an unprimeable number, because it can be changed into a prime (76799971) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 47170 + ... + 48770.

Almost surely, 2^76799970 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 76799970, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (110211192).

76799970 is an abundant number, since it is smaller than the sum of its proper divisors (143622414).

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

76799970 is a wasteful number, since it uses less digits than its factorization.

76799970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1668 (or 1665 counting only the distinct ones).

The product of its (nonzero) digits is 1500282, while the sum is 54.

The square root of 76799970 is about 8763.5592084495. The cubic root of 76799970 is about 425.0633723262.

The spelling of 76799970 in words is "seventy-six million, seven hundred ninety-nine thousand, nine hundred seventy".