612487 has 4 divisors (see below), whose sum is σ = 620320. Its totient is φ = 604656.

The previous prime is 612481. The next prime is 612497. The reversal of 612487 is 784216.

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 612487 - 2¹¹ = 610439 is a prime.

It is a Duffinian number.

612487 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (612481) 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, 3798 + ... + 3955.

It is an arithmetic number, because the mean of its divisors is an integer number (155080).

2⁶¹²⁴⁸⁷ is an apocalyptic number.

612487 is a deficient number, since it is larger than the sum of its proper divisors (7833).

612487 is an equidigital number, since it uses as much as digits as its factorization.

612487 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7832.

The product of its digits is 2688, while the sum is 28.

The square root of 612487 is about 782.6154866855. The cubic root of 612487 is about 84.9243617782.

The spelling of 612487 in words is "six hundred twelve thousand, four hundred eighty-seven".