68945036 has 12 divisors (see below), whose sum is σ = 121085160. Its totient is φ = 34349280.

The previous prime is 68945033. The next prime is 68945057. The reversal of 68945036 is 63054986.

It is a junction number, because it is equal to n+sod(n) for n = 68944984 and 68945002.

It is not an unprimeable number, because it can be changed into a prime (68945033) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29546 + ... + 31793.

It is an arithmetic number, because the mean of its divisors is an integer number (10090430).

Almost surely, 2^68945036 is an apocalyptic number.

It is an amenable number.

68945036 is a deficient number, since it is larger than the sum of its proper divisors (52140124).

68945036 is a wasteful number, since it uses less digits than its factorization.

68945036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61624 (or 61622 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 41.

The square root of 68945036 is about 8303.3147597812. The cubic root of 68945036 is about 410.0476565663.

The spelling of 68945036 in words is "sixty-eight million, nine hundred forty-five thousand, thirty-six".