7290038689 has 4 divisors (see below), whose sum is σ = 7294801840. Its totient is φ = 7285275540.

The previous prime is 7290038677. The next prime is 7290038699. The reversal of 7290038689 is 9868300927.

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: 9868300927 = 191 ⋅51666497.

It is a cyclic number.

It is not a de Polignac number, because 7290038689 - 2¹³ = 7290030497 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7290038659) 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, 2379279 + ... + 2382340.

It is an arithmetic number, because the mean of its divisors is an integer number (1823700460).

Almost surely, 2^7290038689 is an apocalyptic number.

It is an amenable number.

7290038689 is a deficient number, since it is larger than the sum of its proper divisors (4763151).

7290038689 is a wasteful number, since it uses less digits than its factorization.

7290038689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4763150.

The product of its (nonzero) digits is 1306368, while the sum is 52.

The square root of 7290038689 is about 85381.7233897279. The cubic root of 7290038689 is about 1938.9946511841.

The spelling of 7290038689 in words is "seven billion, two hundred ninety million, thirty-eight thousand, six hundred eighty-nine".