67870051 has 4 divisors (see below), whose sum is σ = 69150672. Its totient is φ = 66589432.

The previous prime is 67870007. The next prime is 67870087. The reversal of 67870051 is 15007876.

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 67870051 - 2¹⁵ = 67837283 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 67869989 and 67870016.

It is not an unprimeable number, because it can be changed into a prime (67870091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 640231 + ... + 640336.

It is an arithmetic number, because the mean of its divisors is an integer number (17287668).

Almost surely, 2^67870051 is an apocalyptic number.

67870051 is a deficient number, since it is larger than the sum of its proper divisors (1280621).

67870051 is a wasteful number, since it uses less digits than its factorization.

67870051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1280620.

The product of its (nonzero) digits is 11760, while the sum is 34.

The square root of 67870051 is about 8238.3281677777. The cubic root of 67870051 is about 407.9053409614.

The spelling of 67870051 in words is "sixty-seven million, eight hundred seventy thousand, fifty-one".