69985743 has 4 divisors (see below), whose sum is σ = 93314328. Its totient is φ = 46657160.

The previous prime is 69985723. The next prime is 69985771. The reversal of 69985743 is 34758996.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 69985743 - 2¹⁴ = 69969359 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (69985723) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11664288 + ... + 11664293.

It is an arithmetic number, because the mean of its divisors is an integer number (23328582).

Almost surely, 2^69985743 is an apocalyptic number.

69985743 is a deficient number, since it is larger than the sum of its proper divisors (23328585).

69985743 is a wasteful number, since it uses less digits than its factorization.

69985743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23328584.

The product of its digits is 1632960, while the sum is 51.

The square root of 69985743 is about 8365.7482032392. The cubic root of 69985743 is about 412.1005484789.

The spelling of 69985743 in words is "sixty-nine million, nine hundred eighty-five thousand, seven hundred forty-three".