67731422 has 16 divisors (see below), whose sum is σ = 111366144. Its totient is φ = 30639000.

The previous prime is 67731421. The next prime is 67731427. The reversal of 67731422 is 22413776.

It is a super-2 number, since 2×67731422² = 9175091052284168, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67731421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2654 + ... + 11937.

It is an arithmetic number, because the mean of its divisors is an integer number (6960384).

Almost surely, 2^67731422 is an apocalyptic number.

67731422 is a deficient number, since it is larger than the sum of its proper divisors (43634722).

67731422 is a wasteful number, since it uses less digits than its factorization.

67731422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14815.

The product of its digits is 14112, while the sum is 32.

The square root of 67731422 is about 8229.9102060715. The cubic root of 67731422 is about 407.6274272470.

The spelling of 67731422 in words is "sixty-seven million, seven hundred thirty-one thousand, four hundred twenty-two".