3123687 has 8 divisors (see below), whose sum is σ = 4759936. Its totient is φ = 1784952.

The previous prime is 3123683. The next prime is 3123689. The reversal of 3123687 is 7863213.

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

It is not a de Polignac number, because 3123687 - 2² = 3123683 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 (3123683) 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, 74353 + ... + 74394.

It is an arithmetic number, because the mean of its divisors is an integer number (594992).

Almost surely, 2^3123687 is an apocalyptic number.

3123687 is a deficient number, since it is larger than the sum of its proper divisors (1636249).

3123687 is a wasteful number, since it uses less digits than its factorization.

3123687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 148757.

The product of its digits is 6048, while the sum is 30.

The square root of 3123687 is about 1767.3955414677. The cubic root of 3123687 is about 146.1804081207.

The spelling of 3123687 in words is "three million, one hundred twenty-three thousand, six hundred eighty-seven".