34788891 has 4 divisors (see below), whose sum is σ = 46385192. Its totient is φ = 23192592.

The previous prime is 34788889. The next prime is 34788899. The reversal of 34788891 is 19888743.

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

It is not a de Polignac number, because 34788891 - 2¹ = 34788889 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 34788891.

It is not an unprimeable number, because it can be changed into a prime (34788899) 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, 5798146 + ... + 5798151.

It is an arithmetic number, because the mean of its divisors is an integer number (11596298).

Almost surely, 2^34788891 is an apocalyptic number.

34788891 is a deficient number, since it is larger than the sum of its proper divisors (11596301).

34788891 is a wasteful number, since it uses less digits than its factorization.

34788891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11596300.

The product of its digits is 387072, while the sum is 48.

The square root of 34788891 is about 5898.2108304129. The cubic root of 34788891 is about 326.4476361565.

The spelling of 34788891 in words is "thirty-four million, seven hundred eighty-eight thousand, eight hundred ninety-one".