34321509 has 8 divisors (see below), whose sum is σ = 50846720. Its totient is φ = 22880988.

The previous prime is 34321501. The next prime is 34321513. The reversal of 34321509 is 90512343.

It is not a de Polignac number, because 34321509 - 2³ = 34321501 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 1271167 = 34321509 / (3 + 4 + 3 + 2 + 1 + 5 + 0 + 9).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34321501) 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, 635557 + ... + 635610.

It is an arithmetic number, because the mean of its divisors is an integer number (6355840).

Almost surely, 2^34321509 is an apocalyptic number.

It is an amenable number.

34321509 is a deficient number, since it is larger than the sum of its proper divisors (16525211).

34321509 is a wasteful number, since it uses less digits than its factorization.

34321509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1271176 (or 1271170 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 27.

The square root of 34321509 is about 5858.4561959615. The cubic root of 34321509 is about 324.9791197631.

The spelling of 34321509 in words is "thirty-four million, three hundred twenty-one thousand, five hundred nine".