61288086 has 8 divisors (see below), whose sum is σ = 122576184. Its totient is φ = 20429360.

The previous prime is 61288063. The next prime is 61288127. The reversal of 61288086 is 68088216.

It is a sphenic number, since it is the product of 3 distinct primes.

61288086 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5107335 + ... + 5107346.

It is an arithmetic number, because the mean of its divisors is an integer number (15322023).

Almost surely, 2^61288086 is an apocalyptic number.

61288086 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

61288086 is a wasteful number, since it uses less digits than its factorization.

61288086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10214686.

The product of its (nonzero) digits is 36864, while the sum is 39.

The square root of 61288086 is about 7828.6707684000. The cubic root of 61288086 is about 394.2684446107.

The spelling of 61288086 in words is "sixty-one million, two hundred eighty-eight thousand, eighty-six".