3622947 has 4 divisors (see below), whose sum is σ = 4830600. Its totient is φ = 2415296.

The previous prime is 3622919. The next prime is 3622951. The reversal of 3622947 is 7492263.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7492263 = 3 ⋅2497421.

It is a cyclic number.

It is not a de Polignac number, because 3622947 - 2¹² = 3618851 is a prime.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (3622967) 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, 603822 + ... + 603827.

It is an arithmetic number, because the mean of its divisors is an integer number (1207650).

Almost surely, 2^3622947 is an apocalyptic number.

3622947 is a deficient number, since it is larger than the sum of its proper divisors (1207653).

3622947 is a wasteful number, since it uses less digits than its factorization.

3622947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1207652.

The product of its digits is 18144, while the sum is 33.

The square root of 3622947 is about 1903.4040558956. The cubic root of 3622947 is about 153.5868359622.

The spelling of 3622947 in words is "three million, six hundred twenty-two thousand, nine hundred forty-seven".