34639969 has 16 divisors (see below), whose sum is σ = 42795648. Its totient is φ = 27303552.

The previous prime is 34639939. The next prime is 34639991. The reversal of 34639969 is 96993643.

It is a cyclic number.

It is not a de Polignac number, because 34639969 - 2¹³ = 34631777 is a prime.

It is a super-2 number, since 2×34639969² = 2399854904641922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (34639919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31029 + ... + 32125.

It is an arithmetic number, because the mean of its divisors is an integer number (2674728).

Almost surely, 2^34639969 is an apocalyptic number.

It is an amenable number.

34639969 is a deficient number, since it is larger than the sum of its proper divisors (8155679).

34639969 is a wasteful number, since it uses less digits than its factorization.

34639969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1464.

The product of its digits is 944784, while the sum is 49.

The square root of 34639969 is about 5885.5729542671. The cubic root of 34639969 is about 325.9811580313.

The spelling of 34639969 in words is "thirty-four million, six hundred thirty-nine thousand, nine hundred sixty-nine".