7639889223 has 4 divisors (see below), whose sum is σ = 10186518968. Its totient is φ = 5093259480.

The previous prime is 7639889219. The next prime is 7639889281. The reversal of 7639889223 is 3229889367.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3229889367 = 3 ⋅1076629789.

It is not a de Polignac number, because 7639889223 - 2² = 7639889219 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 (7639889123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1273314868 + ... + 1273314873.

It is an arithmetic number, because the mean of its divisors is an integer number (2546629742).

Almost surely, 2^7639889223 is an apocalyptic number.

7639889223 is a deficient number, since it is larger than the sum of its proper divisors (2546629745).

7639889223 is a wasteful number, since it uses less digits than its factorization.

7639889223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2546629744.

The product of its digits is 7838208, while the sum is 57.

The square root of 7639889223 is about 87406.4598470845. The cubic root of 7639889223 is about 1969.5288817341.

The spelling of 7639889223 in words is "seven billion, six hundred thirty-nine million, eight hundred eighty-nine thousand, two hundred twenty-three".