34663720 has 128 divisors (see below), whose sum is σ = 97977600. Its totient is φ = 10745856.

The previous prime is 34663679. The next prime is 34663721. The reversal of 34663720 is 2736643.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34663721) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 323907 + ... + 324013.

It is an arithmetic number, because the mean of its divisors is an integer number (765450).

Almost surely, 2^34663720 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 34663720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48988800).

34663720 is an abundant number, since it is smaller than the sum of its proper divisors (63313880).

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

34663720 is a wasteful number, since it uses less digits than its factorization.

34663720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227 (or 223 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 31.

The square root of 34663720 is about 5887.5903390097. The cubic root of 34663720 is about 326.0556443338.

The spelling of 34663720 in words is "thirty-four million, six hundred sixty-three thousand, seven hundred twenty".