3722001 has 4 divisors (see below), whose sum is σ = 4962672. Its totient is φ = 2481332.

The previous prime is 3721981. The next prime is 3722009. The reversal of 3722001 is 1002273.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3722001 - 2⁷ = 3721873 is a prime.

It is a D-number.

3722001 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3722009) 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, 620331 + ... + 620336.

It is an arithmetic number, because the mean of its divisors is an integer number (1240668).

Almost surely, 2^3722001 is an apocalyptic number.

It is an amenable number.

3722001 is a deficient number, since it is larger than the sum of its proper divisors (1240671).

3722001 is a wasteful number, since it uses less digits than its factorization.

3722001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1240670.

The product of its (nonzero) digits is 84, while the sum is 15.

The square root of 3722001 is about 1929.2488175453. The cubic root of 3722001 is about 154.9739949435.

Adding to 3722001 its reverse (1002273), we get a palindrome (4724274).

The spelling of 3722001 in words is "three million, seven hundred twenty-two thousand, one".