3721113 has 48 divisors (see below), whose sum is σ = 6511680. Its totient is φ = 2090880.

The previous prime is 3721099. The next prime is 3721117. The reversal of 3721113 is 3111273.

It is not a de Polignac number, because 3721113 - 2⁴ = 3721097 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 47 ways as a sum of consecutive naturals, for example, 55506 + ... + 55572.

It is an arithmetic number, because the mean of its divisors is an integer number (135660).

Almost surely, 2^3721113 is an apocalyptic number.

3721113 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

It is an amenable number.

3721113 is a deficient number, since it is larger than the sum of its proper divisors (2790567).

3721113 is a wasteful number, since it uses less digits than its factorization.

3721113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115 (or 98 counting only the distinct ones).

The product of its digits is 126, while the sum is 18.

The square root of 3721113 is about 1929.0186624292. The cubic root of 3721113 is about 154.9616693286.

Adding to 3721113 its reverse (3111273), we get a palindrome (6832386).

It can be divided in two parts, 372 and 1113, that added together give a triangular number (1485 = T₅₄).

The spelling of 3721113 in words is "three million, seven hundred twenty-one thousand, one hundred thirteen".