67726161 has 12 divisors (see below), whose sum is σ = 100102288. Its totient is φ = 44100504.

The previous prime is 67726151. The next prime is 67726171. The reversal of 67726161 is 16162776.

It is an interprime number because it is at equal distance from previous prime (67726151) and next prime (67726171).

It is not a de Polignac number, because 67726161 - 2⁵ = 67726129 is a prime.

It is a super-3 number, since 3×67726161³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (67726121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 87115 + ... + 87888.

Almost surely, 2^67726161 is an apocalyptic number.

It is an amenable number.

67726161 is a deficient number, since it is larger than the sum of its proper divisors (32376127).

67726161 is a wasteful number, since it uses less digits than its factorization.

67726161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175052 (or 175049 counting only the distinct ones).

The product of its digits is 21168, while the sum is 36.

The square root of 67726161 is about 8229.5905730480. The cubic root of 67726161 is about 407.6168728969.

The spelling of 67726161 in words is "sixty-seven million, seven hundred twenty-six thousand, one hundred sixty-one".