3730989 has 4 divisors (see below), whose sum is σ = 4974656. Its totient is φ = 2487324.

The previous prime is 3730967. The next prime is 3730997. The reversal of 3730989 is 9890373.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 9890373 = 3 ⋅3296791.

It is not a de Polignac number, because 3730989 - 2⁷ = 3730861 is a prime.

It is a D-number.

It is a Duffinian number.

3730989 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3730919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 621829 + ... + 621834.

It is an arithmetic number, because the mean of its divisors is an integer number (1243664).

Almost surely, 2^3730989 is an apocalyptic number.

It is an amenable number.

3730989 is a deficient number, since it is larger than the sum of its proper divisors (1243667).

3730989 is a wasteful number, since it uses less digits than its factorization.

3730989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1243666.

The product of its (nonzero) digits is 40824, while the sum is 39.

The square root of 3730989 is about 1931.5768170073. The cubic root of 3730989 is about 155.0986399537.

The spelling of 3730989 in words is "three million, seven hundred thirty thousand, nine hundred eighty-nine".