68296905 has 32 divisors (see below), whose sum is σ = 128563200. Its totient is φ = 34281216.

The previous prime is 68296903. The next prime is 68296927. The reversal of 68296905 is 50969286.

It is not a de Polignac number, because 68296905 - 2¹ = 68296903 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (68296903) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 12585 + ... + 17174.

It is an arithmetic number, because the mean of its divisors is an integer number (4017600).

Almost surely, 2^68296905 is an apocalyptic number.

It is an amenable number.

68296905 is a deficient number, since it is larger than the sum of its proper divisors (60266295).

68296905 is a wasteful number, since it uses less digits than its factorization.

68296905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29790 (or 29784 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 45.

The square root of 68296905 is about 8264.1941530920. The cubic root of 68296905 is about 408.7586985776.

The spelling of 68296905 in words is "sixty-eight million, two hundred ninety-six thousand, nine hundred five".