68972911 has 8 divisors (see below), whose sum is σ = 79550240. Its totient is φ = 58576608.

The previous prime is 68972909. The next prime is 68972957. The reversal of 68972911 is 11927986.

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

It is a cyclic number.

It is not a de Polignac number, because 68972911 - 2¹ = 68972909 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68972971) 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, 44436 + ... + 45961.

It is an arithmetic number, because the mean of its divisors is an integer number (9943780).

Almost surely, 2^68972911 is an apocalyptic number.

68972911 is a deficient number, since it is larger than the sum of its proper divisors (10577329).

68972911 is a wasteful number, since it uses less digits than its factorization.

68972911 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90513.

The product of its digits is 54432, while the sum is 43.

The square root of 68972911 is about 8304.9931366618. The cubic root of 68972911 is about 410.1029109110.

The spelling of 68972911 in words is "sixty-eight million, nine hundred seventy-two thousand, nine hundred eleven".