61894768 has 40 divisors (see below), whose sum is σ = 129675728. Its totient is φ = 28449792.

The previous prime is 61894741. The next prime is 61894823. The reversal of 61894768 is 86749816.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 69655 + ... + 70537.

Almost surely, 2^61894768 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 61894768, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64837864).

61894768 is an abundant number, since it is smaller than the sum of its proper divisors (67780960).

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

61894768 is a wasteful number, since it uses less digits than its factorization.

61894768 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1241 (or 1235 counting only the distinct ones).

The product of its digits is 580608, while the sum is 49.

The square root of 61894768 is about 7867.3227974960. The cubic root of 61894768 is about 395.5651111234.

The spelling of 61894768 in words is "sixty-one million, eight hundred ninety-four thousand, seven hundred sixty-eight".