67623945 has 16 divisors (see below), whose sum is σ = 113893440. Its totient is φ = 34167744.

The previous prime is 67623937. The next prime is 67623947. The reversal of 67623945 is 54932676.

It is not a de Polignac number, because 67623945 - 2³ = 67623937 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 67623897 and 67623906.

It is not an unprimeable number, because it can be changed into a prime (67623947) 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 15 ways as a sum of consecutive naturals, for example, 118354 + ... + 118923.

It is an arithmetic number, because the mean of its divisors is an integer number (7118340).

Almost surely, 2^67623945 is an apocalyptic number.

It is an amenable number.

67623945 is a deficient number, since it is larger than the sum of its proper divisors (46269495).

67623945 is a wasteful number, since it uses less digits than its factorization.

67623945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 237304.

The product of its digits is 272160, while the sum is 42.

The square root of 67623945 is about 8223.3779555606. The cubic root of 67623945 is about 407.4117038048.

The spelling of 67623945 in words is "sixty-seven million, six hundred twenty-three thousand, nine hundred forty-five".