69999429 has 12 divisors (see below), whose sum is σ = 94955456. Its totient is φ = 45868488.

The previous prime is 69999409. The next prime is 69999443. The reversal of 69999429 is 92499996.

It is not a de Polignac number, because 69999429 - 2¹² = 69995333 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69999409) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7092 + ... + 13794.

Almost surely, 2^69999429 is an apocalyptic number.

It is an amenable number.

69999429 is a deficient number, since it is larger than the sum of its proper divisors (24956027).

69999429 is an equidigital number, since it uses as much as digits as its factorization.

69999429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6824 (or 6765 counting only the distinct ones).

The product of its digits is 2834352, while the sum is 57.

The square root of 69999429 is about 8366.5661414944. The cubic root of 69999429 is about 412.1274093807.

It can be divided in two parts, 699 and 99429, that added together give a triangular number (100128 = T₄₄₇).

The spelling of 69999429 in words is "sixty-nine million, nine hundred ninety-nine thousand, four hundred twenty-nine".