3573864 has 72 divisors (see below), whose sum is σ = 11270610. Its totient is φ = 1020096.

The previous prime is 3573839. The next prime is 3573877. The reversal of 3573864 is 4683753.

It is a happy number.

3573864 is a `hidden beast` number, since 3 + 573 + 86 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 3572100 + 1764 = 1890^2 + 42^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 3022 + ... + 4034.

Almost surely, 2^3573864 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 3573864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (5635305).

3573864 is an abundant number, since it is smaller than the sum of its proper divisors (7696746).

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

3573864 is a wasteful number, since it uses less digits than its factorization.

3573864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1039 (or 1025 counting only the distinct ones).

The product of its digits is 60480, while the sum is 36.

The square root of 3573864 is about 1890.4666090677. The cubic root of 3573864 is about 152.8900915127.

The spelling of 3573864 in words is "three million, five hundred seventy-three thousand, eight hundred sixty-four".