34621686 has 48 divisors (see below), whose sum is σ = 86149440. Its totient is φ = 9938160.

The previous prime is 34621651. The next prime is 34621687. The reversal of 34621686 is 68612643.

It is a super-2 number, since 2×34621686² = 2397322282965192, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 34621686.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34621687) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 840 + ... + 8363.

It is an arithmetic number, because the mean of its divisors is an integer number (1794780).

Almost surely, 2^34621686 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 34621686, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43074720).

34621686 is an abundant number, since it is smaller than the sum of its proper divisors (51527754).

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

34621686 is a wasteful number, since it uses less digits than its factorization.

34621686 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9241 (or 9238 counting only the distinct ones).

The product of its digits is 41472, while the sum is 36.

The square root of 34621686 is about 5884.0195444951. The cubic root of 34621686 is about 325.9237969102.

The spelling of 34621686 in words is "thirty-four million, six hundred twenty-one thousand, six hundred eighty-six".