34143993 has 12 divisors (see below), whose sum is σ = 53113060. Its totient is φ = 21011616.

The previous prime is 34143961. The next prime is 34143997. The reversal of 34143993 is 39934143.

It can be written as a sum of positive squares in 2 ways, for example, as 3640464 + 30503529 = 1908^2 + 5523^2 .

It is not a de Polignac number, because 34143993 - 2⁵ = 34143961 is a prime.

It is not an unprimeable number, because it can be changed into a prime (34143997) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 145798 + ... + 146031.

Almost surely, 2^34143993 is an apocalyptic number.

It is an amenable number.

34143993 is a deficient number, since it is larger than the sum of its proper divisors (18969067).

34143993 is a wasteful number, since it uses less digits than its factorization.

34143993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291848 (or 291845 counting only the distinct ones).

The product of its digits is 34992, while the sum is 36.

The square root of 34143993 is about 5843.2861473661. The cubic root of 34143993 is about 324.4178707524.

The spelling of 34143993 in words is "thirty-four million, one hundred forty-three thousand, nine hundred ninety-three".