68978324 has 12 divisors (see below), whose sum is σ = 121001748. Its totient is φ = 34406400.

The previous prime is 68978291. The next prime is 68978347. The reversal of 68978324 is 42387986.

It can be written as a sum of positive squares in 2 ways, for example, as 26337424 + 42640900 = 5132^2 + 6530^2 .

It is a congruent number.

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, 18797 + ... + 22164.

It is an arithmetic number, because the mean of its divisors is an integer number (10083479).

Almost surely, 2^68978324 is an apocalyptic number.

It is an amenable number.

68978324 is a deficient number, since it is larger than the sum of its proper divisors (52023424).

68978324 is a wasteful number, since it uses less digits than its factorization.

68978324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41386 (or 41384 counting only the distinct ones).

The product of its digits is 580608, while the sum is 47.

The square root of 68978324 is about 8305.3190185567. The cubic root of 68978324 is about 410.1136389343.

The spelling of 68978324 in words is "sixty-eight million, nine hundred seventy-eight thousand, three hundred twenty-four".