67723940 has 12 divisors (see below), whose sum is σ = 142220316. Its totient is φ = 27089568.

The previous prime is 67723921. The next prime is 67724047. The reversal of 67723940 is 4932776.

It can be written as a sum of positive squares in 2 ways, for example, as 37429924 + 30294016 = 6118^2 + 5504^2 .

It is a junction number, because it is equal to n+sod(n) for n = 67723894 and 67723903.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1693079 + ... + 1693118.

It is an arithmetic number, because the mean of its divisors is an integer number (11851693).

Almost surely, 2^67723940 is an apocalyptic number.

It is an amenable number.

67723940 is an abundant number, since it is smaller than the sum of its proper divisors (74496376).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

67723940 is a wasteful number, since it uses less digits than its factorization.

67723940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3386206 (or 3386204 counting only the distinct ones).

The product of its (nonzero) digits is 63504, while the sum is 38.

The square root of 67723940 is about 8229.4556320573. The cubic root of 67723940 is about 407.6124170758.

The spelling of 67723940 in words is "sixty-seven million, seven hundred twenty-three thousand, nine hundred forty".