68673320 has 32 divisors (see below), whose sum is σ = 154784520. Its totient is φ = 27421440.

The previous prime is 68673317. The next prime is 68673323. The reversal of 68673320 is 2337686.

It is an interprime number because it is at equal distance from previous prime (68673317) and next prime (68673323).

It can be written as a sum of positive squares in 4 ways, for example, as 44328964 + 24344356 = 6658^2 + 4934^2 .

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (68673323) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29810 + ... + 32030.

Almost surely, 2^68673320 is an apocalyptic number.

It is an amenable number.

68673320 is an abundant number, since it is smaller than the sum of its proper divisors (86111200).

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

68673320 is a wasteful number, since it uses less digits than its factorization.

68673320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3005 (or 3001 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 35.

The square root of 68673320 is about 8286.9367078553. The cubic root of 68673320 is about 409.5082742654.

The spelling of 68673320 in words is "sixty-eight million, six hundred seventy-three thousand, three hundred twenty".