7639149 has 24 divisors (see below), whose sum is σ = 11959968. Its totient is φ = 4324320.

The previous prime is 7639147. The next prime is 7639153. The reversal of 7639149 is 9419367.

It is not a de Polignac number, because 7639149 - 2¹ = 7639147 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7639147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22914 + ... + 23244.

It is an arithmetic number, because the mean of its divisors is an integer number (498332).

Almost surely, 2^7639149 is an apocalyptic number.

It is an amenable number.

7639149 is a deficient number, since it is larger than the sum of its proper divisors (4320819).

7639149 is a wasteful number, since it uses less digits than its factorization.

7639149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 505 (or 498 counting only the distinct ones).

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

The square root of 7639149 is about 2763.9010474328. The cubic root of 7639149 is about 196.9465270966.

The spelling of 7639149 in words is "seven million, six hundred thirty-nine thousand, one hundred forty-nine".