3721137 has 16 divisors (see below), whose sum is σ = 5744640. Its totient is φ = 2098512.

The previous prime is 3721129. The next prime is 3721141. The reversal of 3721137 is 7311273.

It is not a de Polignac number, because 3721137 - 2³ = 3721129 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3721117) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 538 + ... + 2780.

It is an arithmetic number, because the mean of its divisors is an integer number (359040).

Almost surely, 2^3721137 is an apocalyptic number.

It is an amenable number.

3721137 is a deficient number, since it is larger than the sum of its proper divisors (2023503).

3721137 is a wasteful number, since it uses less digits than its factorization.

3721137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2332.

The product of its digits is 882, while the sum is 24.

The square root of 3721137 is about 1929.0248831988. The cubic root of 3721137 is about 154.9620024791.

The spelling of 3721137 in words is "three million, seven hundred twenty-one thousand, one hundred thirty-seven".