61894856 has 16 divisors (see below), whose sum is σ = 122161200. Its totient is φ = 29318544.

The previous prime is 61894823. The next prime is 61894873. The reversal of 61894856 is 65849816.

It is a self number, because there is not a number n which added to its sum of digits gives 61894856.

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 3 ways as a sum of consecutive naturals, for example, 203450 + ... + 203753.

It is an arithmetic number, because the mean of its divisors is an integer number (7635075).

Almost surely, 2^61894856 is an apocalyptic number.

It is an amenable number.

61894856 is a deficient number, since it is larger than the sum of its proper divisors (60266344).

61894856 is a wasteful number, since it uses less digits than its factorization.

61894856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407228 (or 407224 counting only the distinct ones).

The product of its digits is 414720, while the sum is 47.

The square root of 61894856 is about 7867.3283902479. The cubic root of 61894856 is about 395.5652985906.

The spelling of 61894856 in words is "sixty-one million, eight hundred ninety-four thousand, eight hundred fifty-six".