147947904 has 256 divisors, whose sum is σ = 488376000. Its totient is φ = 43794432.

The previous prime is 147947897. The next prime is 147947929. The reversal of 147947904 is 409749741.

It is a self number, because there is not a number n which added to its sum of digits gives 147947904.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1662292 + ... + 1662380.

Almost surely, 2^147947904 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 147947904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (244188000).

147947904 is an abundant number, since it is smaller than the sum of its proper divisors (340428096).

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

147947904 is a wasteful number, since it uses less digits than its factorization.

147947904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162 (or 144 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 45.

The square root of 147947904 is about 12163.3837397330. The cubic root of 147947904 is about 528.8951756688.

The spelling of 147947904 in words is "one hundred forty-seven million, nine hundred forty-seven thousand, nine hundred four".