612387 has 16 divisors (see below), whose sum is σ = 933280. Its totient is φ = 396576.

The previous prime is 612383. The next prime is 612401. The reversal of 612387 is 783216.

612387 is digitally balanced in base 7, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 612387 - 2² = 612383 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

612387 is strictly pandigital in base 7.

It is a self number, because there is not a number n which added to its sum of digits gives 612387.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 612387.

It is not an unprimeable number, because it can be changed into a prime (612383) 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, 693 + ... + 1305.

It is an arithmetic number, because the mean of its divisors is an integer number (58330).

2⁶¹²³⁸⁷ is an apocalyptic number.

612387 is a deficient number, since it is larger than the sum of its proper divisors (320893).

612387 is a wasteful number, since it uses less digits than its factorization.

612387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 659 (or 653 counting only the distinct ones).

The product of its digits is 2016, while the sum is 27.

The square root of 612387 is about 782.5515957431. The cubic root of 612387 is about 84.9197396945.

It can be divided in two parts, 612 and 387, that added together give a palindrome (999).

The spelling of 612387 in words is "six hundred twelve thousand, three hundred eighty-seven".