34721871 has 16 divisors (see below), whose sum is σ = 49827168. Its totient is φ = 21427200.

The previous prime is 34721867. The next prime is 34721909. The reversal of 34721871 is 17812743.

It is a happy number.

It is not a de Polignac number, because 34721871 - 2² = 34721867 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34721801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2470 + ... + 8691.

It is an arithmetic number, because the mean of its divisors is an integer number (3114198).

Almost surely, 2^34721871 is an apocalyptic number.

34721871 is a deficient number, since it is larger than the sum of its proper divisors (15105297).

34721871 is a wasteful number, since it uses less digits than its factorization.

34721871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11242.

The product of its digits is 9408, while the sum is 33.

The square root of 34721871 is about 5892.5267076187. The cubic root of 34721871 is about 326.2378701029.

The spelling of 34721871 in words is "thirty-four million, seven hundred twenty-one thousand, eight hundred seventy-one".