123829769 has 12 divisors (see below), whose sum is σ = 147841344. Its totient is φ = 101409264.

The previous prime is 123829759. The next prime is 123829789. The reversal of 123829769 is 967928321.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-123829769 is a prime.

It is a super-2 number, since 2×123829769² = 30667623381186722, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123829729) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 140759 + ... + 141635.

It is an arithmetic number, because the mean of its divisors is an integer number (12320112).

Almost surely, 2^123829769 is an apocalyptic number.

It is an amenable number.

123829769 is a deficient number, since it is larger than the sum of its proper divisors (24011575).

123829769 is an frugal number, since it uses more digits than its factorization.

123829769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1784 (or 907 counting only the distinct ones).

The product of its digits is 326592, while the sum is 47.

The square root of 123829769 is about 11127.8825029742. The cubic root of 123829769 is about 498.4347973943.

The spelling of 123829769 in words is "one hundred twenty-three million, eight hundred twenty-nine thousand, seven hundred sixty-nine".