68072946 has 8 divisors (see below), whose sum is σ = 136145904. Its totient is φ = 22690980.

The previous prime is 68072923. The next prime is 68072959. The reversal of 68072946 is 64927086.

It is a sphenic number, since it is the product of 3 distinct primes.

68072946 is an admirable number.

It is a super-3 number, since 3×68072946³ (a number of 24 digits) contains 333 as substring.

It is a plaindrome in base 13.

It is a junction number, because it is equal to n+sod(n) for n = 68072898 and 68072907.

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, 5672740 + ... + 5672751.

It is an arithmetic number, because the mean of its divisors is an integer number (17018238).

Almost surely, 2^68072946 is an apocalyptic number.

68072946 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

68072946 is a wasteful number, since it uses less digits than its factorization.

68072946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11345496.

The product of its (nonzero) digits is 145152, while the sum is 42.

The square root of 68072946 is about 8250.6330666198. The cubic root of 68072946 is about 408.3114092167.

The spelling of 68072946 in words is "sixty-eight million, seventy-two thousand, nine hundred forty-six".