67861066 has 32 divisors (see below), whose sum is σ = 125693568. Its totient is φ = 26758080.

The previous prime is 67861043. The next prime is 67861067. The reversal of 67861066 is 66016876.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (67861067) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 103596 + ... + 104248.

It is an arithmetic number, because the mean of its divisors is an integer number (3927924).

Almost surely, 2^67861066 is an apocalyptic number.

67861066 is a deficient number, since it is larger than the sum of its proper divisors (57832502).

67861066 is a wasteful number, since it uses less digits than its factorization.

67861066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1246.

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 67861066 is about 8237.7828327773. The cubic root of 67861066 is about 407.8873399375.

The spelling of 67861066 in words is "sixty-seven million, eight hundred sixty-one thousand, sixty-six".