61634214 has 48 divisors (see below), whose sum is σ = 148852080. Its totient is φ = 18316800.

The previous prime is 61634213. The next prime is 61634239. The reversal of 61634214 is 41243616.

61634214 is a `hidden beast` number, since 6 + 1 + 634 + 21 + 4 = 666.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61634213) 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, 514 + ... + 11114.

It is an arithmetic number, because the mean of its divisors is an integer number (3101085).

Almost surely, 2^61634214 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61634214, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74426040).

61634214 is an abundant number, since it is smaller than the sum of its proper divisors (87217866).

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

61634214 is a wasteful number, since it uses less digits than its factorization.

61634214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10645 (or 10642 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

The square root of 61634214 is about 7850.7460791953. The cubic root of 61634214 is about 395.0092696644.

The spelling of 61634214 in words is "sixty-one million, six hundred thirty-four thousand, two hundred fourteen".