67326731 has 2 divisors, whose sum is σ = 67326732. Its totient is φ = 67326730.

The previous prime is 67326713. The next prime is 67326767. The reversal of 67326731 is 13762376.

It is a happy number.

Together with previous prime (67326713) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 67326731 - 2⁶ = 67326667 is a prime.

It is a super-2 number, since 2×67326731² = 9065777414292722, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 67326691 and 67326700.

It is not a weakly prime, because it can be changed into another prime (67326331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 33663365 + 33663366.

It is an arithmetic number, because the mean of its divisors is an integer number (33663366).

Almost surely, 2^67326731 is an apocalyptic number.

67326731 is a deficient number, since it is larger than the sum of its proper divisors (1).

67326731 is an equidigital number, since it uses as much as digits as its factorization.

67326731 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31752, while the sum is 35.

The square root of 67326731 is about 8205.2867713444. The cubic root of 67326731 is about 406.8139555013.

The spelling of 67326731 in words is "sixty-seven million, three hundred twenty-six thousand, seven hundred thirty-one".