68427975 has 144 divisors (see below), whose sum is σ = 153490176. Its totient is φ = 26112000.

The previous prime is 68427973. The next prime is 68427977. The reversal of 68427975 is 57972486.

It is an interprime number because it is at equal distance from previous prime (68427973) and next prime (68427977).

It is not a de Polignac number, because 68427975 - 2¹ = 68427973 is a prime.

Its product of digits (846720) is a multiple of the sum of its prime divisors (84).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68427973) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 1668955 + ... + 1668995.

It is an arithmetic number, because the mean of its divisors is an integer number (1065904).

Almost surely, 2^68427975 is an apocalyptic number.

68427975 is an abundant number, since it is smaller than the sum of its proper divisors (85062201).

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

68427975 is a wasteful number, since it uses less digits than its factorization.

68427975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106 (or 84 counting only the distinct ones).

The product of its digits is 846720, while the sum is 48.

The square root of 68427975 is about 8272.1203448693. The cubic root of 68427975 is about 409.0200172332.

The spelling of 68427975 in words is "sixty-eight million, four hundred twenty-seven thousand, nine hundred seventy-five".