7239109889 has 4 divisors (see below), whose sum is σ = 7897210800. Its totient is φ = 6581008980.

The previous prime is 7239109859. The next prime is 7239109919. The reversal of 7239109889 is 9889019327.

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.

It is an interprime number because it is at equal distance from previous prime (7239109859) and next prime (7239109919).

It is a cyclic number.

It is not a de Polignac number, because 7239109889 - 2¹² = 7239105793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7239109859) 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, 329050439 + ... + 329050460.

It is an arithmetic number, because the mean of its divisors is an integer number (1974302700).

Almost surely, 2^7239109889 is an apocalyptic number.

It is an amenable number.

7239109889 is a deficient number, since it is larger than the sum of its proper divisors (658100911).

7239109889 is a wasteful number, since it uses less digits than its factorization.

7239109889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 658100910.

The product of its (nonzero) digits is 1959552, while the sum is 56.

The square root of 7239109889 is about 85082.9588636879. The cubic root of 7239109889 is about 1934.4687708808.

The spelling of 7239109889 in words is "seven billion, two hundred thirty-nine million, one hundred nine thousand, eight hundred eighty-nine".