34021993 has 8 divisors (see below), whose sum is σ = 34706880. Its totient is φ = 33342960.

The previous prime is 34021979. The next prime is 34022003. The reversal of 34021993 is 39912043.

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 34021993 - 2¹³ = 34013801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (34021963) 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, 11371 + ... + 14047.

It is an arithmetic number, because the mean of its divisors is an integer number (4338360).

Almost surely, 2^34021993 is an apocalyptic number.

It is an amenable number.

34021993 is a deficient number, since it is larger than the sum of its proper divisors (684887).

34021993 is a wasteful number, since it uses less digits than its factorization.

34021993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2927.

The product of its (nonzero) digits is 5832, while the sum is 31.

The square root of 34021993 is about 5832.8374741630. The cubic root of 34021993 is about 324.0310168193.

The spelling of 34021993 in words is "thirty-four million, twenty-one thousand, nine hundred ninety-three".