79873020 has 192 divisors, whose sum is σ = 266112000. Its totient is φ = 19844352.

The previous prime is 79872983. The next prime is 79873037. The reversal of 79873020 is 2037897.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

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, 732726 + ... + 732834.

It is an arithmetic number, because the mean of its divisors is an integer number (1386000).

Almost surely, 2^79873020 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 79873020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (133056000).

79873020 is an abundant number, since it is smaller than the sum of its proper divisors (186238980).

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

79873020 is a wasteful number, since it uses less digits than its factorization.

79873020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209 (or 201 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 36.

The square root of 79873020 is about 8937.1706932340. The cubic root of 79873020 is about 430.6588421846.

The spelling of 79873020 in words is "seventy-nine million, eight hundred seventy-three thousand, twenty".