61368586 has 4 divisors (see below), whose sum is σ = 92052882. Its totient is φ = 30684292.

The previous prime is 61368569. The next prime is 61368661. The reversal of 61368586 is 68586316.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 59768361 + 1600225 = 7731^2 + 1265^2 .

It is a super-2 number, since 2×61368586² = 7532206695278792, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15342145 + ... + 15342148.

Almost surely, 2^61368586 is an apocalyptic number.

61368586 is a deficient number, since it is larger than the sum of its proper divisors (30684296).

61368586 is a wasteful number, since it uses less digits than its factorization.

61368586 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30684295.

The product of its digits is 207360, while the sum is 43.

The square root of 61368586 is about 7833.8104393711. The cubic root of 61368586 is about 394.4409888799.

The spelling of 61368586 in words is "sixty-one million, three hundred sixty-eight thousand, five hundred eighty-six".