69434891 has 4 divisors (see below), whose sum is σ = 69530352. Its totient is φ = 69339432.

The previous prime is 69434887. The next prime is 69434909. The reversal of 69434891 is 19843496.

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 69434891 - 2² = 69434887 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (69434821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46631 + ... + 48096.

It is an arithmetic number, because the mean of its divisors is an integer number (17382588).

Almost surely, 2^69434891 is an apocalyptic number.

69434891 is a deficient number, since it is larger than the sum of its proper divisors (95461).

69434891 is an equidigital number, since it uses as much as digits as its factorization.

69434891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95460.

The product of its digits is 186624, while the sum is 44.

The square root of 69434891 is about 8332.7601069514. The cubic root of 69434891 is about 411.0164962013.

The spelling of 69434891 in words is "sixty-nine million, four hundred thirty-four thousand, eight hundred ninety-one".