61881622 has 8 divisors (see below), whose sum is σ = 101260872. Its totient is φ = 28128000.

The previous prime is 61881593. The next prime is 61881623. The reversal of 61881622 is 22618816.

61881622 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61881623) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1406379 + ... + 1406422.

It is an arithmetic number, because the mean of its divisors is an integer number (12657609).

Almost surely, 2^61881622 is an apocalyptic number.

61881622 is a deficient number, since it is larger than the sum of its proper divisors (39379250).

61881622 is a wasteful number, since it uses less digits than its factorization.

61881622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2812814.

The product of its digits is 9216, while the sum is 34.

The square root of 61881622 is about 7866.4872719658. The cubic root of 61881622 is about 395.5371040865.

It can be divided in two parts, 6188162 and 2, that multiplied together give a square (12376324 = 3518²).

The spelling of 61881622 in words is "sixty-one million, eight hundred eighty-one thousand, six hundred twenty-two".