3123816 has 32 divisors (see below), whose sum is σ = 7920960. Its totient is φ = 1026432.

The previous prime is 3123803. The next prime is 3123823. The reversal of 3123816 is 6183213.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 861 + ... + 2643.

It is an arithmetic number, because the mean of its divisors is an integer number (247530).

Almost surely, 2^3123816 is an apocalyptic number.

It is an amenable number.

3123816 is an abundant number, since it is smaller than the sum of its proper divisors (4797144).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3123816 is a wasteful number, since it uses less digits than its factorization.

3123816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1865 (or 1861 counting only the distinct ones).

The product of its digits is 864, while the sum is 24.

The square root of 3123816 is about 1767.4320354684. The cubic root of 3123816 is about 146.1824203809.

The spelling of 3123816 in words is "three million, one hundred twenty-three thousand, eight hundred sixteen".