67421514 has 16 divisors (see below), whose sum is σ = 136081440. Its totient is φ = 22267440.

The previous prime is 67421461. The next prime is 67421521. The reversal of 67421514 is 41512476.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50892 + ... + 52199.

It is an arithmetic number, because the mean of its divisors is an integer number (8505090).

Almost surely, 2^67421514 is an apocalyptic number.

67421514 is an abundant number, since it is smaller than the sum of its proper divisors (68659926).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

67421514 is a wasteful number, since it uses less digits than its factorization.

67421514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103205.

The product of its digits is 6720, while the sum is 30.

The square root of 67421514 is about 8211.0604674427. The cubic root of 67421514 is about 407.0047710766.

It can be divided in two parts, 6742 and 1514, that added together give a triangular number (8256 = T₁₂₈).

The spelling of 67421514 in words is "sixty-seven million, four hundred twenty-one thousand, five hundred fourteen".