67372543 has 16 divisors (see below), whose sum is σ = 81377280. Its totient is φ = 54527616.

The previous prime is 67372493. The next prime is 67372549. The reversal of 67372543 is 34527376.

It is a cyclic number.

It is not a de Polignac number, because 67372543 - 2¹³ = 67364351 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 (67372549) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10071 + ... + 15367.

It is an arithmetic number, because the mean of its divisors is an integer number (5086080).

Almost surely, 2^67372543 is an apocalyptic number.

67372543 is a deficient number, since it is larger than the sum of its proper divisors (14004737).

67372543 is a wasteful number, since it uses less digits than its factorization.

67372543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5406.

The product of its digits is 105840, while the sum is 37.

The square root of 67372543 is about 8208.0779114236. The cubic root of 67372543 is about 406.9062058112.

The spelling of 67372543 in words is "sixty-seven million, three hundred seventy-two thousand, five hundred forty-three".