61486836 has 24 divisors (see below), whose sum is σ = 144091584. Its totient is φ = 20406720.

The previous prime is 61486829. The next prime is 61486847. The reversal of 61486836 is 63868416.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8200 + ... + 13791.

It is an arithmetic number, because the mean of its divisors is an integer number (6003816).

Almost surely, 2^61486836 is an apocalyptic number.

It is an amenable number.

61486836 is an abundant number, since it is smaller than the sum of its proper divisors (82604748).

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

61486836 is a wasteful number, since it uses less digits than its factorization.

61486836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22231 (or 22229 counting only the distinct ones).

The product of its digits is 165888, while the sum is 42.

The square root of 61486836 is about 7841.3542197761. The cubic root of 61486836 is about 394.6941733603.

The spelling of 61486836 in words is "sixty-one million, four hundred eighty-six thousand, eight hundred thirty-six".