3721394 has 16 divisors (see below), whose sum is σ = 5754240. Its totient is φ = 1804320.

The previous prime is 3721391. The next prime is 3721409. The reversal of 3721394 is 4931273.

3721394 = 5² + 6² + ... + 223².

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (3721391) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10187 + ... + 10545.

It is an arithmetic number, because the mean of its divisors is an integer number (359640).

Almost surely, 2^3721394 is an apocalyptic number.

3721394 is a deficient number, since it is larger than the sum of its proper divisors (2032846).

3721394 is a wasteful number, since it uses less digits than its factorization.

3721394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 505.

The product of its digits is 4536, while the sum is 29.

The square root of 3721394 is about 1929.0914960157. The cubic root of 3721394 is about 154.9655698760.

The spelling of 3721394 in words is "three million, seven hundred twenty-one thousand, three hundred ninety-four".