1862664 has 16 divisors (see below), whose sum is σ = 4656720. Its totient is φ = 620880.

The previous prime is 1862659. The next prime is 1862669. The reversal of 1862664 is 4662681.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1862659) and next prime (1862669).

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

It is not an unprimeable number, because it can be changed into a prime (1862669) 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, 38782 + ... + 38829.

It is an arithmetic number, because the mean of its divisors is an integer number (291045).

2^1862664 is an apocalyptic number.

It is an amenable number.

1862664 is an abundant number, since it is smaller than the sum of its proper divisors (2794056).

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

1862664 is a wasteful number, since it uses less digits than its factorization.

1862664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77620 (or 77616 counting only the distinct ones).

The product of its digits is 13824, while the sum is 33.

The square root of 1862664 is about 1364.7944900240. The cubic root of 1862664 is about 123.0395800971.

It can be divided in two parts, 186 and 2664, that added together give a triangular number (2850 = T₇₅).

The spelling of 1862664 in words is "one million, eight hundred sixty-two thousand, six hundred sixty-four".