7399139 has 8 divisors (see below), whose sum is σ = 8260032. Its totient is φ = 6569640.

The previous prime is 7399103. The next prime is 7399153. The reversal of 7399139 is 9319937.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 7399139 - 2⁸ = 7398883 is a prime.

It is a plaindrome in base 12.

It is a junction number, because it is equal to n+sod(n) for n = 7399096 and 7399105.

It is not an unprimeable number, because it can be changed into a prime (7399039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7349 + ... + 8294.

It is an arithmetic number, because the mean of its divisors is an integer number (1032504).

Almost surely, 2^7399139 is an apocalyptic number.

7399139 is a deficient number, since it is larger than the sum of its proper divisors (860893).

7399139 is a wasteful number, since it uses less digits than its factorization.

7399139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15697.

The product of its digits is 45927, while the sum is 41.

The square root of 7399139 is about 2720.1358421961. The cubic root of 7399139 is about 194.8619579672.

The spelling of 7399139 in words is "seven million, three hundred ninety-nine thousand, one hundred thirty-nine".