34719891 has 4 divisors (see below), whose sum is σ = 46293192. Its totient is φ = 23146592.

The previous prime is 34719863. The next prime is 34719911. The reversal of 34719891 is 19891743.

It is a happy number.

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 34719891 - 2⁶ = 34719827 is a prime.

It is not an unprimeable number, because it can be changed into a prime (34719851) 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, 5786646 + ... + 5786651.

It is an arithmetic number, because the mean of its divisors is an integer number (11573298).

Almost surely, 2^34719891 is an apocalyptic number.

34719891 is a deficient number, since it is larger than the sum of its proper divisors (11573301).

34719891 is a wasteful number, since it uses less digits than its factorization.

34719891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11573300.

The product of its digits is 54432, while the sum is 42.

The square root of 34719891 is about 5892.3586958026. The cubic root of 34719891 is about 326.2316687928.

The spelling of 34719891 in words is "thirty-four million, seven hundred nineteen thousand, eight hundred ninety-one".