61622000 has 80 divisors (see below), whose sum is σ = 162605664. Its totient is φ = 22400000.

The previous prime is 61621999. The next prime is 61622023. The reversal of 61622000 is 22616.

61622000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (80).

It is a self number, because there is not a number n which added to its sum of digits gives 61622000.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20600 + ... + 23400.

Almost surely, 2^61622000 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 61622000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81302832).

61622000 is an abundant number, since it is smaller than the sum of its proper divisors (100983664).

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

61622000 is a wasteful number, since it uses less digits than its factorization.

61622000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2835 (or 2819 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 61622000 is about 7849.9681528016. The cubic root of 61622000 is about 394.9831750565.

Adding to 61622000 its reverse (22616), we get a palindrome (61644616).

The spelling of 61622000 in words is "sixty-one million, six hundred twenty-two thousand".