67966051 has 4 divisors (see below), whose sum is σ = 71964072. Its totient is φ = 63968032.

The previous prime is 67966049. The next prime is 67966091. The reversal of 67966051 is 15066976.

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

It is a cyclic number.

It is not a de Polignac number, because 67966051 - 2¹ = 67966049 is a prime.

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 a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 67965995 and 67966013.

It is not an unprimeable number, because it can be changed into a prime (67966091) 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, 1998985 + ... + 1999018.

It is an arithmetic number, because the mean of its divisors is an integer number (17991018).

Almost surely, 2^67966051 is an apocalyptic number.

67966051 is a deficient number, since it is larger than the sum of its proper divisors (3998021).

67966051 is a wasteful number, since it uses less digits than its factorization.

67966051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3998020.

The product of its (nonzero) digits is 68040, while the sum is 40.

The square root of 67966051 is about 8244.1525337660. The cubic root of 67966051 is about 408.0975733410.

The spelling of 67966051 in words is "sixty-seven million, nine hundred sixty-six thousand, fifty-one".