67417481 has 4 divisors (see below), whose sum is σ = 68036100. Its totient is φ = 66798864.

The previous prime is 67417463. The next prime is 67417487. The reversal of 67417481 is 18471476.

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 55279225 + 12138256 = 7435^2 + 3484^2 .

It is a cyclic number.

It is not a de Polignac number, because 67417481 - 2⁶ = 67417417 is a prime.

It is a super-2 number, since 2×67417481² = 9090233488770722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (67417487) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 309146 + ... + 309363.

It is an arithmetic number, because the mean of its divisors is an integer number (17009025).

Almost surely, 2^67417481 is an apocalyptic number.

It is an amenable number.

67417481 is a deficient number, since it is larger than the sum of its proper divisors (618619).

67417481 is a wasteful number, since it uses less digits than its factorization.

67417481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 618618.

The product of its digits is 37632, while the sum is 38.

The square root of 67417481 is about 8210.8148803879. The cubic root of 67417481 is about 406.9966555515.

The spelling of 67417481 in words is "sixty-seven million, four hundred seventeen thousand, four hundred eighty-one".