34840723 has 4 divisors (see below), whose sum is σ = 34990488. Its totient is φ = 34690960.

The previous prime is 34840627. The next prime is 34840733. The reversal of 34840723 is 32704843.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 34840723 - 2¹⁷ = 34709651 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (34840733) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74533 + ... + 74998.

It is an arithmetic number, because the mean of its divisors is an integer number (8747622).

Almost surely, 2^34840723 is an apocalyptic number.

34840723 is a deficient number, since it is larger than the sum of its proper divisors (149765).

34840723 is a wasteful number, since it uses less digits than its factorization.

34840723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149764.

The product of its (nonzero) digits is 16128, while the sum is 31.

The square root of 34840723 is about 5902.6030698328. The cubic root of 34840723 is about 326.6096805820.

The spelling of 34840723 in words is "thirty-four million, eight hundred forty thousand, seven hundred twenty-three".