3624891 has 4 divisors (see below), whose sum is σ = 4833192. Its totient is φ = 2416592.

The previous prime is 3624847. The next prime is 3624911. The reversal of 3624891 is 1984263.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1984263 = 3 ⋅661421.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3624891 is a prime.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (3624811) 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, 604146 + ... + 604151.

It is an arithmetic number, because the mean of its divisors is an integer number (1208298).

Almost surely, 2^3624891 is an apocalyptic number.

3624891 is a deficient number, since it is larger than the sum of its proper divisors (1208301).

3624891 is a wasteful number, since it uses less digits than its factorization.

3624891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1208300.

The product of its digits is 10368, while the sum is 33.

The square root of 3624891 is about 1903.9146514484. The cubic root of 3624891 is about 153.6143015790.

It can be divided in two parts, 362 and 4891, that added together give a triangular number (5253 = T₁₀₂).

The spelling of 3624891 in words is "three million, six hundred twenty-four thousand, eight hundred ninety-one".