79470000 has 150 divisors (see below), whose sum is σ = 278232812. Its totient is φ = 21168000.

The previous prime is 79469987. The next prime is 79470011. The reversal of 79470000 is 7497.

It is a tau number, because it is divible by the number of its divisors (150).

It is an unprimeable number.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 89559 + ... + 90441.

Almost surely, 2^79470000 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 79470000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (139116406).

79470000 is an abundant number, since it is smaller than the sum of its proper divisors (198762812).

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

79470000 is a wasteful number, since it uses less digits than its factorization.

79470000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 917 (or 893 counting only the distinct ones).

The product of its (nonzero) digits is 1764, while the sum is 27.

The square root of 79470000 is about 8914.5947748622. The cubic root of 79470000 is about 429.9332869280.

Adding to 79470000 its reverse (7497), we get a palindrome (79477497).

The spelling of 79470000 in words is "seventy-nine million, four hundred seventy thousand".