34193987 has 16 divisors (see below), whose sum is σ = 38348640. Its totient is φ = 30331392.

The previous prime is 34193963. The next prime is 34193989. The reversal of 34193987 is 78939143.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 34193987 - 2⁶ = 34193923 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (34193989) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20393 + ... + 22005.

It is an arithmetic number, because the mean of its divisors is an integer number (2396790).

Almost surely, 2^34193987 is an apocalyptic number.

34193987 is a deficient number, since it is larger than the sum of its proper divisors (4154653).

34193987 is a wasteful number, since it uses less digits than its factorization.

34193987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1702.

The product of its digits is 163296, while the sum is 44.

The square root of 34193987 is about 5847.5624836337. The cubic root of 34193987 is about 324.5761322410.

The spelling of 34193987 in words is "thirty-four million, one hundred ninety-three thousand, nine hundred eighty-seven".