79447284 has 96 divisors (see below), whose sum is σ = 247833600. Its totient is φ = 21500640.

The previous prime is 79447279. The next prime is 79447289. The reversal of 79447284 is 48274497.

It is an interprime number because it is at equal distance from previous prime (79447279) and next prime (79447289).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79447289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11599 + ... + 17129.

It is an arithmetic number, because the mean of its divisors is an integer number (2581600).

Almost surely, 2^79447284 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 79447284, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (123916800).

79447284 is an abundant number, since it is smaller than the sum of its proper divisors (168386316).

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

79447284 is a wasteful number, since it uses less digits than its factorization.

79447284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5570 (or 5562 counting only the distinct ones).

The product of its digits is 451584, while the sum is 45.

The square root of 79447284 is about 8913.3205933591. The cubic root of 79447284 is about 429.8923184483.

The spelling of 79447284 in words is "seventy-nine million, four hundred forty-seven thousand, two hundred eighty-four".