147597989 has 8 divisors (see below), whose sum is σ = 184018368. Its totient is φ = 115011360.

The previous prime is 147597977. The next prime is 147598021. The reversal of 147597989 is 989795741.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-147597989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (147597929) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 958352 + ... + 958505.

It is an arithmetic number, because the mean of its divisors is an integer number (23002296).

Almost surely, 2^147597989 is an apocalyptic number.

It is an amenable number.

147597989 is a deficient number, since it is larger than the sum of its proper divisors (36420379).

147597989 is a wasteful number, since it uses less digits than its factorization.

147597989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1916875.

The product of its digits is 5715360, while the sum is 59.

The square root of 147597989 is about 12148.9912749989. The cubic root of 147597989 is about 528.4778791170.

The spelling of 147597989 in words is "one hundred forty-seven million, five hundred ninety-seven thousand, nine hundred eighty-nine".