147879666 has 72 divisors (see below), whose sum is σ = 360600240. Its totient is φ = 43742160.

The previous prime is 147879659. The next prime is 147879733. The reversal of 147879666 is 666978741.

It is a happy number.

147879666 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 92865 + ... + 94443.

Almost surely, 2^147879666 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 147879666, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (180300120).

147879666 is an abundant number, since it is smaller than the sum of its proper divisors (212720574).

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

147879666 is a wasteful number, since it uses less digits than its factorization.

147879666 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1652 (or 1638 counting only the distinct ones).

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

The square root of 147879666 is about 12160.5783579565. The cubic root of 147879666 is about 528.8138490708.

The spelling of 147879666 in words is "one hundred forty-seven million, eight hundred seventy-nine thousand, six hundred sixty-six".