61986622 has 8 divisors (see below), whose sum is σ = 93309336. Its totient is φ = 30883512.

The previous prime is 61986619. The next prime is 61986637. The reversal of 61986622 is 22668916.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54193 + ... + 55324.

It is an arithmetic number, because the mean of its divisors is an integer number (11663667).

Almost surely, 2^61986622 is an apocalyptic number.

61986622 is a deficient number, since it is larger than the sum of its proper divisors (31322714).

61986622 is a wasteful number, since it uses less digits than its factorization.

61986622 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109802.

The product of its digits is 62208, while the sum is 40.

The square root of 61986622 is about 7873.1583243321. The cubic root of 61986622 is about 395.7606918913.

The spelling of 61986622 in words is "sixty-one million, nine hundred eighty-six thousand, six hundred twenty-two".