34724139 has 4 divisors (see below), whose sum is σ = 46298856. Its totient is φ = 23149424.

The previous prime is 34724099. The next prime is 34724141. The reversal of 34724139 is 93142743.

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 34724139 - 2¹¹ = 34722091 is a prime.

It is not an unprimeable number, because it can be changed into a prime (34724159) 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, 5787354 + ... + 5787359.

It is an arithmetic number, because the mean of its divisors is an integer number (11574714).

Almost surely, 2^34724139 is an apocalyptic number.

34724139 is a deficient number, since it is larger than the sum of its proper divisors (11574717).

34724139 is a wasteful number, since it uses less digits than its factorization.

34724139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11574716.

The product of its digits is 18144, while the sum is 33.

The square root of 34724139 is about 5892.7191516311. The cubic root of 34724139 is about 326.2449731320.

The spelling of 34724139 in words is "thirty-four million, seven hundred twenty-four thousand, one hundred thirty-nine".