7649889 has 16 divisors (see below), whose sum is σ = 11139072. Its totient is φ = 4641408.

The previous prime is 7649879. The next prime is 7649893. The reversal of 7649889 is 9889467.

It is a happy number.

7649889 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 7649889 - 2⁹ = 7649377 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7649849) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1504 + ... + 4190.

It is an arithmetic number, because the mean of its divisors is an integer number (696192).

Almost surely, 2^7649889 is an apocalyptic number.

It is an amenable number.

7649889 is a deficient number, since it is larger than the sum of its proper divisors (3489183).

7649889 is a wasteful number, since it uses less digits than its factorization.

7649889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2776.

The product of its digits is 870912, while the sum is 51.

The square root of 7649889 is about 2765.8432710477. The cubic root of 7649889 is about 197.0387806189.

The spelling of 7649889 in words is "seven million, six hundred forty-nine thousand, eight hundred eighty-nine".