61003686 has 8 divisors (see below), whose sum is σ = 122007384. Its totient is φ = 20334560.

The previous prime is 61003673. The next prime is 61003693. The reversal of 61003686 is 68630016.

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

61003686 is an admirable number.

It is a Curzon 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, 5083635 + ... + 5083646.

It is an arithmetic number, because the mean of its divisors is an integer number (15250923).

Almost surely, 2^61003686 is an apocalyptic number.

61003686 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.

61003686 is a wasteful number, since it uses less digits than its factorization.

61003686 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10167286.

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 61003686 is about 7810.4856443118. The cubic root of 61003686 is about 393.6576470733.

It can be divided in two parts, 6 and 1003686, that multiplied together give a square (6022116 = 2454²).

The spelling of 61003686 in words is "sixty-one million, three thousand, six hundred eighty-six".