1587423 has 8 divisors (see below), whose sum is σ = 2128000. Its totient is φ = 1052568.

The previous prime is 1587413. The next prime is 1587449. The reversal of 1587423 is 3247851.

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

It is not a de Polignac number, because 1587423 - 2⁴ = 1587407 is a prime.

It is a Duffinian number.

1587423 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1587413) 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, 733 + ... + 1926.

It is an arithmetic number, because the mean of its divisors is an integer number (266000).

2^1587423 is an apocalyptic number.

1587423 is a deficient number, since it is larger than the sum of its proper divisors (540577).

1587423 is a wasteful number, since it uses less digits than its factorization.

1587423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2861.

The product of its digits is 6720, while the sum is 30.

The square root of 1587423 is about 1259.9297599470. The cubic root of 1587423 is about 116.6534415848.

The spelling of 1587423 in words is "one million, five hundred eighty-seven thousand, four hundred twenty-three".