3721011 has 24 divisors (see below), whose sum is σ = 6114960. Its totient is φ = 1999872.

The previous prime is 3720989. The next prime is 3721027. The reversal of 3721011 is 1101273.

It is not a de Polignac number, because 3721011 - 2⁶ = 3720947 is a prime.

3721011 is a lucky number.

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (3721051) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1755 + ... + 3243.

It is an arithmetic number, because the mean of its divisors is an integer number (254790).

Almost surely, 2^3721011 is an apocalyptic number.

3721011 is a deficient number, since it is larger than the sum of its proper divisors (2393949).

3721011 is a wasteful number, since it uses less digits than its factorization.

3721011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1523 (or 1516 counting only the distinct ones).

The product of its (nonzero) digits is 42, while the sum is 15.

The square root of 3721011 is about 1928.9922239346. The cubic root of 3721011 is about 154.9602534230.

Adding to 3721011 its reverse (1101273), we get a palindrome (4822284).

The spelling of 3721011 in words is "three million, seven hundred twenty-one thousand, eleven".