61740886 has 8 divisors (see below), whose sum is σ = 92802960. Its totient is φ = 30806568.

The previous prime is 61740883. The next prime is 61740929. The reversal of 61740886 is 68804716.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61740883) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30721 + ... + 32668.

It is an arithmetic number, because the mean of its divisors is an integer number (11600370).

Almost surely, 2^61740886 is an apocalyptic number.

61740886 is a deficient number, since it is larger than the sum of its proper divisors (31062074).

61740886 is a wasteful number, since it uses less digits than its factorization.

61740886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63878.

The product of its (nonzero) digits is 64512, while the sum is 40.

The square root of 61740886 is about 7857.5368914183. The cubic root of 61740886 is about 395.2370227285.

It can be divided in two parts, 6174088 and 6, that multiplied together give a triangular number (37044528 = T₈₆₀₇).

The spelling of 61740886 in words is "sixty-one million, seven hundred forty thousand, eight hundred eighty-six".