598991641 has 8 divisors (see below), whose sum is σ = 631471104. Its totient is φ = 567334560.

The previous prime is 598991639. The next prime is 598991681. The reversal of 598991641 is 146199895.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 598991641 - 2¹ = 598991639 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (598991681) 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, 204100 + ... + 207013.

It is an arithmetic number, because the mean of its divisors is an integer number (78933888).

Almost surely, 2^598991641 is an apocalyptic number.

It is an amenable number.

598991641 is a deficient number, since it is larger than the sum of its proper divisors (32479463).

598991641 is a wasteful number, since it uses less digits than its factorization.

598991641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 411191.

The product of its digits is 699840, while the sum is 52.

The square root of 598991641 is about 24474.3057307046. The cubic root of 598991641 is about 842.9599098549.

The spelling of 598991641 in words is "five hundred ninety-eight million, nine hundred ninety-one thousand, six hundred forty-one".