3261864 has 16 divisors (see below), whose sum is σ = 8154720. Its totient is φ = 1087280.

The previous prime is 3261857. The next prime is 3261871. The reversal of 3261864 is 4681623.

It is an interprime number because it is at equal distance from previous prime (3261857) and next prime (3261871).

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 3 ways as a sum of consecutive naturals, for example, 67932 + ... + 67979.

It is an arithmetic number, because the mean of its divisors is an integer number (509670).

Almost surely, 2^3261864 is an apocalyptic number.

It is an amenable number.

3261864 is an abundant number, since it is smaller than the sum of its proper divisors (4892856).

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

3261864 is a wasteful number, since it uses less digits than its factorization.

3261864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135920 (or 135916 counting only the distinct ones).

The product of its digits is 6912, while the sum is 30.

The square root of 3261864 is about 1806.0631218205. The cubic root of 3261864 is about 148.3048258420.

The spelling of 3261864 in words is "three million, two hundred sixty-one thousand, eight hundred sixty-four".