34685872 has 40 divisors (see below), whose sum is σ = 74345936. Its totient is φ = 15572736.

The previous prime is 34685857. The next prime is 34685873. The reversal of 34685872 is 27858643.

It is not an unprimeable number, because it can be changed into a prime (34685873) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5443 + ... + 9949.

Almost surely, 2^34685872 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 34685872, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37172968).

34685872 is an abundant number, since it is smaller than the sum of its proper divisors (39660064).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

34685872 is a wasteful number, since it uses less digits than its factorization.

34685872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4565 (or 4559 counting only the distinct ones).

The product of its digits is 322560, while the sum is 43.

The square root of 34685872 is about 5889.4712835704. The cubic root of 34685872 is about 326.1250852997.

The spelling of 34685872 in words is "thirty-four million, six hundred eighty-five thousand, eight hundred seventy-two".