147770728 has 32 divisors (see below), whose sum is σ = 317943360. Its totient is φ = 63072000.

The previous prime is 147770713. The next prime is 147770737. The reversal of 147770728 is 827077741.

147770728 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 7 ways as a sum of consecutive naturals, for example, 8800 + ... + 19312.

It is an arithmetic number, because the mean of its divisors is an integer number (9935730).

Almost surely, 2^147770728 is an apocalyptic number.

It is an amenable number.

147770728 is an abundant number, since it is smaller than the sum of its proper divisors (170172632).

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

147770728 is a wasteful number, since it uses less digits than its factorization.

147770728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10777 (or 10773 counting only the distinct ones).

The product of its (nonzero) digits is 153664, while the sum is 43.

The square root of 147770728 is about 12156.0983872293. The cubic root of 147770728 is about 528.6839640177.

The spelling of 147770728 in words is "one hundred forty-seven million, seven hundred seventy thousand, seven hundred twenty-eight".