79943760 has 300 divisors, whose sum is σ = 304776252. Its totient is φ = 19408896.

The previous prime is 79943753. The next prime is 79943767. The reversal of 79943760 is 6734997.

It is an interprime number because it is at equal distance from previous prime (79943753) and next prime (79943767).

It can be written as a sum of positive squares in 6 ways, for example, as 13749264 + 66194496 = 3708^2 + 8136^2 .

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79943767) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 1095084 + ... + 1095156.

Almost surely, 2^79943760 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 79943760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (152388126).

79943760 is an abundant number, since it is smaller than the sum of its proper divisors (224832492).

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

79943760 is a wasteful number, since it uses less digits than its factorization.

79943760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124 (or 96 counting only the distinct ones).

The product of its (nonzero) digits is 285768, while the sum is 45.

The square root of 79943760 is about 8941.1274456860. The cubic root of 79943760 is about 430.7859431637.

The spelling of 79943760 in words is "seventy-nine million, nine hundred forty-three thousand, seven hundred sixty".