34388989 has 4 divisors (see below), whose sum is σ = 34405056. Its totient is φ = 34372924.

The previous prime is 34388987. The next prime is 34388999. The reversal of 34388989 is 98988343.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 34388989 - 2¹ = 34388987 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34388987) 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, 4219 + ... + 9304.

It is an arithmetic number, because the mean of its divisors is an integer number (8601264).

Almost surely, 2^34388989 is an apocalyptic number.

It is an amenable number.

34388989 is a deficient number, since it is larger than the sum of its proper divisors (16067).

34388989 is a wasteful number, since it uses less digits than its factorization.

34388989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16066.

The product of its digits is 1492992, while the sum is 52.

The square root of 34388989 is about 5864.2125643602. The cubic root of 34388989 is about 325.1919623341.

The spelling of 34388989 in words is "thirty-four million, three hundred eighty-eight thousand, nine hundred eighty-nine".