69426139 has 8 divisors (see below), whose sum is σ = 70564032. Its totient is φ = 68293440.

The previous prime is 69426127. The next prime is 69426157. The reversal of 69426139 is 93162496.

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

It is a cyclic number.

It is not a de Polignac number, because 69426139 - 2¹⁹ = 68901851 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (69426109) 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, 32622 + ... + 34684.

It is an arithmetic number, because the mean of its divisors is an integer number (8820504).

Almost surely, 2^69426139 is an apocalyptic number.

69426139 is a deficient number, since it is larger than the sum of its proper divisors (1137893).

69426139 is a wasteful number, since it uses less digits than its factorization.

69426139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2597.

The product of its digits is 69984, while the sum is 40.

The square root of 69426139 is about 8332.2349342778. The cubic root of 69426139 is about 410.9992264614. Note that the first 3 decimals are identical.

The spelling of 69426139 in words is "sixty-nine million, four hundred twenty-six thousand, one hundred thirty-nine".