34156993 has 12 divisors (see below), whose sum is σ = 37344468. Its totient is φ = 31056480.

The previous prime is 34156987. The next prime is 34157021. The reversal of 34156993 is 39965143.

It can be written as a sum of positive squares in 2 ways, for example, as 1803649 + 32353344 = 1343^2 + 5688^2 .

It is not a de Polignac number, because 34156993 - 2¹⁷ = 34025921 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34156933) 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, 80923 + ... + 81343.

It is an arithmetic number, because the mean of its divisors is an integer number (3112039).

Almost surely, 2^34156993 is an apocalyptic number.

It is an amenable number.

34156993 is a deficient number, since it is larger than the sum of its proper divisors (3187475).

34156993 is an equidigital number, since it uses as much as digits as its factorization.

34156993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 592 (or 513 counting only the distinct ones).

The product of its digits is 87480, while the sum is 40.

The square root of 34156993 is about 5844.3984292654. The cubic root of 34156993 is about 324.4590385325.

The spelling of 34156993 in words is "thirty-four million, one hundred fifty-six thousand, nine hundred ninety-three".