61000636 has 12 divisors (see below), whose sum is σ = 106842960. Its totient is φ = 30474080.

The previous prime is 61000571. The next prime is 61000727. The reversal of 61000636 is 63600016.

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, 760 + ... + 11071.

It is an arithmetic number, because the mean of its divisors is an integer number (8903580).

Almost surely, 2^61000636 is an apocalyptic number.

It is an amenable number.

61000636 is a deficient number, since it is larger than the sum of its proper divisors (45842324).

61000636 is a wasteful number, since it uses less digits than its factorization.

61000636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13124 (or 13122 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 61000636 is about 7810.2903915283. The cubic root of 61000636 is about 393.6510863996.

The spelling of 61000636 in words is "sixty-one million, six hundred thirty-six", and thus it is an aban number.