67427143 has 16 divisors (see below), whose sum is σ = 82455040. Its totient is φ = 53848800.

The previous prime is 67427137. The next prime is 67427161. The reversal of 67427143 is 34172476.

It is a cyclic number.

It is not a de Polignac number, because 67427143 - 2²¹ = 65329991 is a prime.

It is a super-2 number, since 2×67427143² = 9092839226284898, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 67427099 and 67427108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67427123) 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, 3958 + ... + 12268.

It is an arithmetic number, because the mean of its divisors is an integer number (5153440).

Almost surely, 2^67427143 is an apocalyptic number.

67427143 is a deficient number, since it is larger than the sum of its proper divisors (15027897).

67427143 is a wasteful number, since it uses less digits than its factorization.

67427143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8398.

The product of its digits is 28224, while the sum is 34.

The square root of 67427143 is about 8211.4032296557. The cubic root of 67427143 is about 407.0160976595.

The spelling of 67427143 in words is "sixty-seven million, four hundred twenty-seven thousand, one hundred forty-three".