6129399 has 8 divisors (see below), whose sum is σ = 8214400. Its totient is φ = 4065336.

The previous prime is 6129379. The next prime is 6129407. The reversal of 6129399 is 9939216.

It is a happy number.

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

It is not a de Polignac number, because 6129399 - 2⁷ = 6129271 is a prime.

It is a Duffinian number.

6129399 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6129329) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4537 + ... + 5730.

It is an arithmetic number, because the mean of its divisors is an integer number (1026800).

Almost surely, 2^6129399 is an apocalyptic number.

6129399 is a deficient number, since it is larger than the sum of its proper divisors (2085001).

6129399 is a wasteful number, since it uses less digits than its factorization.

6129399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10469.

The product of its digits is 26244, while the sum is 39.

The square root of 6129399 is about 2475.7623068461. The cubic root of 6129399 is about 183.0090771573.

It can be divided in two parts, 612 and 9399, that added together give a triangular number (10011 = T₁₄₁).

The spelling of 6129399 in words is "six million, one hundred twenty-nine thousand, three hundred ninety-nine".