3722287 has 4 divisors (see below), whose sum is σ = 3728736. Its totient is φ = 3715840.

The previous prime is 3722273. The next prime is 3722291. The reversal of 3722287 is 7822273.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7822273 = 1759 ⋅4447.

It is a cyclic number.

It is not a de Polignac number, because 3722287 - 2¹⁵ = 3689519 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3722207) 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, 2263 + ... + 3544.

It is an arithmetic number, because the mean of its divisors is an integer number (932184).

Almost surely, 2^3722287 is an apocalyptic number.

3722287 is a deficient number, since it is larger than the sum of its proper divisors (6449).

3722287 is an equidigital number, since it uses as much as digits as its factorization.

3722287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6448.

The product of its digits is 9408, while the sum is 31.

The square root of 3722287 is about 1929.3229382351. The cubic root of 3722287 is about 154.9779642625.

The spelling of 3722287 in words is "three million, seven hundred twenty-two thousand, two hundred eighty-seven".