587140921 has 16 divisors (see below), whose sum is σ = 611210880. Its totient is φ = 563713920.

The previous prime is 587140909. The next prime is 587140927. The reversal of 587140921 is 129041785.

It is a cyclic number.

It is not a de Polignac number, because 587140921 - 2⁵ = 587140889 is a prime.

It is a super-2 number, since 2×587140921² = 689468922225456482, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (587140927) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 449956 + ... + 451258.

It is an arithmetic number, because the mean of its divisors is an integer number (38200680).

Almost surely, 2^587140921 is an apocalyptic number.

It is an amenable number.

587140921 is a deficient number, since it is larger than the sum of its proper divisors (24069959).

587140921 is a wasteful number, since it uses less digits than its factorization.

587140921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1536.

The product of its (nonzero) digits is 20160, while the sum is 37.

The square root of 587140921 is about 24230.9909207197. The cubic root of 587140921 is about 837.3636738377.

The spelling of 587140921 in words is "five hundred eighty-seven million, one hundred forty thousand, nine hundred twenty-one".