7741989 has 12 divisors (see below), whose sum is σ = 11456172. Its totient is φ = 5035200.

The previous prime is 7741967. The next prime is 7741997. The reversal of 7741989 is 9891477.

It can be written as a sum of positive squares in 2 ways, for example, as 1822500 + 5919489 = 1350^2 + 2433^2 .

It is not a de Polignac number, because 7741989 - 2¹³ = 7733797 is a prime.

It is a super-2 number, since 2×7741989² = 119876787352242, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7741999) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10122 + ... + 10859.

It is an arithmetic number, because the mean of its divisors is an integer number (954681).

Almost surely, 2^7741989 is an apocalyptic number.

It is an amenable number.

7741989 is a deficient number, since it is larger than the sum of its proper divisors (3714183).

7741989 is a wasteful number, since it uses less digits than its factorization.

7741989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21028 (or 21025 counting only the distinct ones).

The product of its digits is 127008, while the sum is 45.

The square root of 7741989 is about 2782.4429913297. The cubic root of 7741989 is about 197.8263705899.

The spelling of 7741989 in words is "seven million, seven hundred forty-one thousand, nine hundred eighty-nine".