68970321 has 48 divisors (see below), whose sum is σ = 117456768. Its totient is φ = 38188800.

The previous prime is 68970301. The next prime is 68970329. The reversal of 68970321 is 12307986.

It is not a de Polignac number, because 68970321 - 2⁵ = 68970289 is a prime.

It is a Smith number, since the sum of its digits (36) 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 (68970329) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 503365 + ... + 503501.

It is an arithmetic number, because the mean of its divisors is an integer number (2447016).

Almost surely, 2^68970321 is an apocalyptic number.

68970321 is a gapful number since it is divisible by the number (61) formed by its first and last digit.

It is an amenable number.

68970321 is a deficient number, since it is larger than the sum of its proper divisors (48486447).

68970321 is a wasteful number, since it uses less digits than its factorization.

68970321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 342 (or 339 counting only the distinct ones).

The product of its (nonzero) digits is 18144, while the sum is 36.

The square root of 68970321 is about 8304.8372049065. The cubic root of 68970321 is about 410.0977775921.

The spelling of 68970321 in words is "sixty-eight million, nine hundred seventy thousand, three hundred twenty-one".