612907 has 4 divisors (see below), whose sum is σ = 618640. Its totient is φ = 607176.

The previous prime is 612889. The next prime is 612923. The reversal of 612907 is 709216.

612907 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 a de Polignac number, because none of the positive numbers 2^k-612907 is a prime.

It is an Ulam number.

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

It is a Duffinian number.

It is a plaindrome in base 9.

It is not an unprimeable number, because it can be changed into a prime (612947) 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, 2703 + ... + 2920.

It is an arithmetic number, because the mean of its divisors is an integer number (154660).

2⁶¹²⁹⁰⁷ is an apocalyptic number.

612907 is a deficient number, since it is larger than the sum of its proper divisors (5733).

612907 is a wasteful number, since it uses less digits than its factorization.

612907 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5732.

The product of its (nonzero) digits is 756, while the sum is 25.

The square root of 612907 is about 782.8837717056. The cubic root of 612907 is about 84.9437690375.

The spelling of 612907 in words is "six hundred twelve thousand, nine hundred seven".