587231661 has 8 divisors (see below), whose sum is σ = 796246560. Its totient is φ = 384852272.

The previous prime is 587231641. The next prime is 587231707. The reversal of 587231661 is 166132785.

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 587231661 - 2⁶ = 587231597 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (587231611) 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, 1658670 + ... + 1659023.

It is an arithmetic number, because the mean of its divisors is an integer number (99530820).

Almost surely, 2^587231661 is an apocalyptic number.

It is an amenable number.

587231661 is a deficient number, since it is larger than the sum of its proper divisors (209014899).

587231661 is a wasteful number, since it uses less digits than its factorization.

587231661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3317755.

The product of its digits is 60480, while the sum is 39.

The square root of 587231661 is about 24232.8632439504. The cubic root of 587231661 is about 837.4068085510.

The spelling of 587231661 in words is "five hundred eighty-seven million, two hundred thirty-one thousand, six hundred sixty-one".