34093981 has 8 divisors (see below), whose sum is σ = 35637120. Its totient is φ = 32555952.

The previous prime is 34093979. The next prime is 34094009. The reversal of 34093981 is 18939043.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 34093981 - 2¹ = 34093979 is a prime.

It is a super-2 number, since 2×34093981² = 2324799080856722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 34093981.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34093481) 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, 20331 + ... + 21943.

It is an arithmetic number, because the mean of its divisors is an integer number (4454640).

Almost surely, 2^34093981 is an apocalyptic number.

It is an amenable number.

34093981 is a deficient number, since it is larger than the sum of its proper divisors (1543139).

34093981 is a wasteful number, since it uses less digits than its factorization.

34093981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2555.

The product of its (nonzero) digits is 23328, while the sum is 37.

The square root of 34093981 is about 5839.0051378638. The cubic root of 34093981 is about 324.2593976384.

The spelling of 34093981 in words is "thirty-four million, ninety-three thousand, nine hundred eighty-one".