67638795 has 32 divisors (see below), whose sum is σ = 124400640. Its totient is φ = 30741120.

The previous prime is 67638787. The next prime is 67638797. The reversal of 67638795 is 59783676.

It is not a de Polignac number, because 67638795 - 2³ = 67638787 is a prime.

It is not an unprimeable number, because it can be changed into a prime (67638797) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17226 + ... + 20784.

It is an arithmetic number, because the mean of its divisors is an integer number (3887520).

Almost surely, 2^67638795 is an apocalyptic number.

67638795 is a deficient number, since it is larger than the sum of its proper divisors (56761845).

67638795 is a wasteful number, since it uses less digits than its factorization.

67638795 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3755.

The product of its digits is 1905120, while the sum is 51.

The square root of 67638795 is about 8224.2808196219. The cubic root of 67638795 is about 407.4415237204.

The spelling of 67638795 in words is "sixty-seven million, six hundred thirty-eight thousand, seven hundred ninety-five".