34911989 has 4 divisors (see below), whose sum is σ = 39899424. Its totient is φ = 29924556.

The previous prime is 34911977. The next prime is 34911997. The reversal of 34911989 is 98911943.

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 34911989 - 2¹² = 34907893 is a prime.

It is a super-2 number, since 2×34911989² = 2437693951872242, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34911889) 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, 2493707 + ... + 2493720.

It is an arithmetic number, because the mean of its divisors is an integer number (9974856).

Almost surely, 2^34911989 is an apocalyptic number.

It is an amenable number.

34911989 is a deficient number, since it is larger than the sum of its proper divisors (4987435).

34911989 is an equidigital number, since it uses as much as digits as its factorization.

34911989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4987434.

The product of its digits is 69984, while the sum is 44.

The square root of 34911989 is about 5908.6368140206. The cubic root of 34911989 is about 326.8322201008.

The spelling of 34911989 in words is "thirty-four million, nine hundred eleven thousand, nine hundred eighty-nine".