79710540 has 144 divisors (see below), whose sum is σ = 276450048. Its totient is φ = 16803072.

The previous prime is 79710511. The next prime is 79710541. The reversal of 79710540 is 4501797.

It is not an unprimeable number, because it can be changed into a prime (79710541) 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, 70419 + ... + 71541.

It is an arithmetic number, because the mean of its divisors is an integer number (1919792).

Almost surely, 2^79710540 is an apocalyptic number.

79710540 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 79710540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (138225024).

79710540 is an abundant number, since it is smaller than the sum of its proper divisors (196739508).

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

79710540 is a wasteful number, since it uses less digits than its factorization.

79710540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1168 (or 1153 counting only the distinct ones).

The product of its (nonzero) digits is 8820, while the sum is 33.

The square root of 79710540 is about 8928.0759405372. The cubic root of 79710540 is about 430.3666244048.

The spelling of 79710540 in words is "seventy-nine million, seven hundred ten thousand, five hundred forty".