67456913 has 2 divisors, whose sum is σ = 67456914. Its totient is φ = 67456912.

The previous prime is 67456903. The next prime is 67456933. The reversal of 67456913 is 31965476.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37063744 + 30393169 = 6088^2 + 5513^2 .

It is a cyclic number.

It is not a de Polignac number, because 67456913 - 2¹⁰ = 67455889 is a prime.

It is a super-2 number, since 2×67456913² = 9100870222979138, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (67456903) 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 as a sum of consecutive naturals, namely, 33728456 + 33728457.

It is an arithmetic number, because the mean of its divisors is an integer number (33728457).

Almost surely, 2^67456913 is an apocalyptic number.

It is an amenable number.

67456913 is a deficient number, since it is larger than the sum of its proper divisors (1).

67456913 is an equidigital number, since it uses as much as digits as its factorization.

67456913 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 136080, while the sum is 41.

The square root of 67456913 is about 8213.2157526757. The cubic root of 67456913 is about 407.0759898922.

The spelling of 67456913 in words is "sixty-seven million, four hundred fifty-six thousand, nine hundred thirteen".