67468521 has 4 divisors (see below), whose sum is σ = 89958032. Its totient is φ = 44979012.

The previous prime is 67468519. The next prime is 67468543. The reversal of 67468521 is 12586476.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 67468521 - 2¹ = 67468519 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 67468521.

It is not an unprimeable number, because it can be changed into a prime (67468321) 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, 11244751 + ... + 11244756.

It is an arithmetic number, because the mean of its divisors is an integer number (22489508).

Almost surely, 2^67468521 is an apocalyptic number.

It is an amenable number.

67468521 is a deficient number, since it is larger than the sum of its proper divisors (22489511).

67468521 is a wasteful number, since it uses less digits than its factorization.

67468521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22489510.

The product of its digits is 80640, while the sum is 39.

The square root of 67468521 is about 8213.9223882382. The cubic root of 67468521 is about 407.0993384607.

The spelling of 67468521 in words is "sixty-seven million, four hundred sixty-eight thousand, five hundred twenty-one".