61286672 has 20 divisors (see below), whose sum is σ = 119534016. Its totient is φ = 30439200.

The previous prime is 61286623. The next prime is 61286707. The reversal of 61286672 is 27668216.

It is a happy number.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors.

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, 10268 + ... + 15099.

Almost surely, 2^61286672 is an apocalyptic number.

It is an amenable number.

61286672 is a deficient number, since it is larger than the sum of its proper divisors (58247344).

61286672 is a wasteful number, since it uses less digits than its factorization.

61286672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25526 (or 25520 counting only the distinct ones).

The product of its digits is 48384, while the sum is 38.

The square root of 61286672 is about 7828.5804588061. The cubic root of 61286672 is about 394.2654124832.

The spelling of 61286672 in words is "sixty-one million, two hundred eighty-six thousand, six hundred seventy-two".