61887834 has 16 divisors (see below), whose sum is σ = 137528640. Its totient is φ = 20629260.

The previous prime is 61887817. The next prime is 61887857. The reversal of 61887834 is 43878816.

61887834 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 61887834.

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 7 ways as a sum of consecutive naturals, for example, 572982 + ... + 573089.

It is an arithmetic number, because the mean of its divisors is an integer number (8595540).

Almost surely, 2^61887834 is an apocalyptic number.

61887834 is an abundant number, since it is smaller than the sum of its proper divisors (75640806).

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

61887834 is a wasteful number, since it uses less digits than its factorization.

61887834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1146082 (or 1146076 counting only the distinct ones).

The product of its digits is 258048, while the sum is 45.

The square root of 61887834 is about 7866.8821015698. The cubic root of 61887834 is about 395.5503390029.

The spelling of 61887834 in words is "sixty-one million, eight hundred eighty-seven thousand, eight hundred thirty-four".