67424365 has 4 divisors (see below), whose sum is σ = 80909244. Its totient is φ = 53939488.

The previous prime is 67424351. The next prime is 67424419. The reversal of 67424365 is 56342476.

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 23785129 + 43639236 = 4877^2 + 6606^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-67424365 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6742432 + ... + 6742441.

It is an arithmetic number, because the mean of its divisors is an integer number (20227311).

Almost surely, 2^67424365 is an apocalyptic number.

It is an amenable number.

67424365 is a deficient number, since it is larger than the sum of its proper divisors (13484879).

67424365 is a wasteful number, since it uses less digits than its factorization.

67424365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13484878.

The product of its digits is 120960, while the sum is 37.

The square root of 67424365 is about 8211.2340729028. The cubic root of 67424365 is about 407.0105078915.

The spelling of 67424365 in words is "sixty-seven million, four hundred twenty-four thousand, three hundred sixty-five".