612887 has 4 divisors (see below), whose sum is σ = 668616. Its totient is φ = 557160.

The previous prime is 612877. The next prime is 612889. The reversal of 612887 is 788216.

612887 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 612887 - 2⁶ = 612823 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 (612889) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27848 + ... + 27869.

It is an arithmetic number, because the mean of its divisors is an integer number (167154).

2⁶¹²⁸⁸⁷ is an apocalyptic number.

612887 is a deficient number, since it is larger than the sum of its proper divisors (55729).

612887 is a wasteful number, since it uses less digits than its factorization.

612887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55728.

The product of its digits is 5376, while the sum is 32.

The square root of 612887 is about 782.8709983133. The cubic root of 612887 is about 84.9428450834.

The spelling of 612887 in words is "six hundred twelve thousand, eight hundred eighty-seven".