79403328 has 210 divisors, whose sum is σ = 254754126. Its totient is φ = 24440832.

The previous prime is 79403281. The next prime is 79403329. The reversal of 79403328 is 82330497.

It can be written as a sum of positive squares in 3 ways, for example, as 41062464 + 38340864 = 6408^2 + 6192^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 79403292 and 79403301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79403329) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 1498150 + ... + 1498202.

Almost surely, 2^79403328 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 79403328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (127377063).

79403328 is an abundant number, since it is smaller than the sum of its proper divisors (175350798).

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

79403328 is a wasteful number, since it uses less digits than its factorization.

79403328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111 (or 75 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 79403328 is about 8910.8545044794. The cubic root of 79403328 is about 429.8130212850.

The spelling of 79403328 in words is "seventy-nine million, four hundred three thousand, three hundred twenty-eight".