79469784 has 96 divisors (see below), whose sum is σ = 230836320. Its totient is φ = 24634368.

The previous prime is 79469777. The next prime is 79469827. The reversal of 79469784 is 48796497.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 79469784.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 60624 + ... + 61920.

It is an arithmetic number, because the mean of its divisors is an integer number (2404545).

Almost surely, 2^79469784 is an apocalyptic number.

79469784 is a gapful number since it is divisible by the number (74) 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 79469784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (115418160).

79469784 is an abundant number, since it is smaller than the sum of its proper divisors (151366536).

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

79469784 is a wasteful number, since it uses less digits than its factorization.

79469784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1369 (or 1362 counting only the distinct ones).

The product of its digits is 3048192, while the sum is 54.

The square root of 79469784 is about 8914.5826598894. The cubic root of 79469784 is about 429.9328974071.

The spelling of 79469784 in words is "seventy-nine million, four hundred sixty-nine thousand, seven hundred eighty-four".