3722989 has 8 divisors (see below), whose sum is σ = 3811808. Its totient is φ = 3635280.

The previous prime is 3722951. The next prime is 3723001. The reversal of 3722989 is 9892273.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3722989 - 2⁷ = 3722861 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3722189) 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, 11974 + ... + 12280.

It is an arithmetic number, because the mean of its divisors is an integer number (476476).

Almost surely, 2^3722989 is an apocalyptic number.

It is an amenable number.

3722989 is a deficient number, since it is larger than the sum of its proper divisors (88819).

3722989 is a wasteful number, since it uses less digits than its factorization.

3722989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 555.

The product of its digits is 54432, while the sum is 40.

The square root of 3722989 is about 1929.5048587656. The cubic root of 3722989 is about 154.9877062743.

The spelling of 3722989 in words is "three million, seven hundred twenty-two thousand, nine hundred eighty-nine".