34388891 has 8 divisors (see below), whose sum is σ = 35277984. Its totient is φ = 33508800.

The previous prime is 34388881. The next prime is 34388897. The reversal of 34388891 is 19888343.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-34388891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (34388897) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5855 + ... + 10151.

It is an arithmetic number, because the mean of its divisors is an integer number (4409748).

Almost surely, 2^34388891 is an apocalyptic number.

34388891 is a deficient number, since it is larger than the sum of its proper divisors (889093).

34388891 is a wasteful number, since it uses less digits than its factorization.

34388891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4501.

The product of its digits is 165888, while the sum is 44.

The square root of 34388891 is about 5864.2042085862. The cubic root of 34388891 is about 325.1916534286.

The spelling of 34388891 in words is "thirty-four million, three hundred eighty-eight thousand, eight hundred ninety-one".