67800541 has 4 divisors (see below), whose sum is σ = 67822300. Its totient is φ = 67778784.

The previous prime is 67800533. The next prime is 67800547. The reversal of 67800541 is 14500876.

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 54331641 + 13468900 = 7371^2 + 3670^2 .

It is a cyclic number.

It is not a de Polignac number, because 67800541 - 2³ = 67800533 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67800547) 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, 5226 + ... + 12763.

It is an arithmetic number, because the mean of its divisors is an integer number (16955575).

Almost surely, 2^67800541 is an apocalyptic number.

It is an amenable number.

67800541 is a deficient number, since it is larger than the sum of its proper divisors (21759).

67800541 is a wasteful number, since it uses less digits than its factorization.

67800541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21758.

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 67800541 is about 8234.1083913196. The cubic root of 67800541 is about 407.7660395323.

The spelling of 67800541 in words is "sixty-seven million, eight hundred thousand, five hundred forty-one".