61822071 has 12 divisors (see below), whose sum is σ = 89381448. Its totient is φ = 41176464.

The previous prime is 61822001. The next prime is 61822087. The reversal of 61822071 is 17022816.

It is not a de Polignac number, because 61822071 - 2⁹ = 61821559 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61822001) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 9856 + ... + 14858.

It is an arithmetic number, because the mean of its divisors is an integer number (7448454).

Almost surely, 2^61822071 is an apocalyptic number.

61822071 is a deficient number, since it is larger than the sum of its proper divisors (27559377).

61822071 is a wasteful number, since it uses less digits than its factorization.

61822071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6382 (or 6379 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 27.

The square root of 61822071 is about 7862.7012533861. The cubic root of 61822071 is about 395.4101833132.

Adding to 61822071 its reverse (17022816), we get a palindrome (78844887).

The spelling of 61822071 in words is "sixty-one million, eight hundred twenty-two thousand, seventy-one".