61678063 has 8 divisors (see below), whose sum is σ = 63332640. Its totient is φ = 60030720.

The previous prime is 61678051. The next prime is 61678073. The reversal of 61678063 is 36087616.

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

It is a cyclic number.

It is not a de Polignac number, because 61678063 - 2⁵ = 61678031 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61678073) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18423 + ... + 21511.

It is an arithmetic number, because the mean of its divisors is an integer number (7916580).

Almost surely, 2^61678063 is an apocalyptic number.

61678063 is a deficient number, since it is larger than the sum of its proper divisors (1654577).

61678063 is a wasteful number, since it uses less digits than its factorization.

61678063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3617.

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 61678063 is about 7853.5382471852. The cubic root of 61678063 is about 395.1029224935.

The spelling of 61678063 in words is "sixty-one million, six hundred seventy-eight thousand, sixty-three".