67422961 has 4 divisors (see below), whose sum is σ = 67616500. Its totient is φ = 67229424.

The previous prime is 67422911. The next prime is 67422973. The reversal of 67422961 is 16922476.

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

It can be written as a sum of positive squares in 2 ways, for example, as 26718561 + 40704400 = 5169^2 + 6380^2 .

It is a cyclic number.

It is not a de Polignac number, because 67422961 - 2¹³ = 67414769 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 67422961.

It is not an unprimeable number, because it can be changed into a prime (67422911) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 96246 + ... + 96943.

It is an arithmetic number, because the mean of its divisors is an integer number (16904125).

Almost surely, 2^67422961 is an apocalyptic number.

It is an amenable number.

67422961 is a deficient number, since it is larger than the sum of its proper divisors (193539).

67422961 is a wasteful number, since it uses less digits than its factorization.

67422961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193538.

The product of its digits is 36288, while the sum is 37.

The square root of 67422961 is about 8211.1485798273. The cubic root of 67422961 is about 407.0076827668.

The spelling of 67422961 in words is "sixty-seven million, four hundred twenty-two thousand, nine hundred sixty-one".