61069844 has 24 divisors (see below), whose sum is σ = 118070400. Its totient is φ = 27406080.

The previous prime is 61069843. The next prime is 61069859. The reversal of 61069844 is 44896016.

61069844 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 61069798 and 61069807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61069843) 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 7 ways as a sum of consecutive naturals, for example, 5309 + ... + 12260.

It is an arithmetic number, because the mean of its divisors is an integer number (4919600).

Almost surely, 2^61069844 is an apocalyptic number.

It is an amenable number.

61069844 is a deficient number, since it is larger than the sum of its proper divisors (57000556).

61069844 is a wasteful number, since it uses less digits than its factorization.

61069844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17663 (or 17661 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 38.

The square root of 61069844 is about 7814.7197006675. The cubic root of 61069844 is about 393.7999018303.

Subtracting from 61069844 its reverse (44896016), we obtain a triangular number (16173828 = T₅₆₈₇).

The spelling of 61069844 in words is "sixty-one million, sixty-nine thousand, eight hundred forty-four".