68942705 has 24 divisors (see below), whose sum is σ = 90756288. Its totient is φ = 50246976.

The previous prime is 68942677. The next prime is 68942723. The reversal of 68942705 is 50724986.

It is not a de Polignac number, because 68942705 - 2⁶ = 68942641 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 69644 + ... + 70626.

It is an arithmetic number, because the mean of its divisors is an integer number (3781512).

Almost surely, 2^68942705 is an apocalyptic number.

68942705 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

68942705 is a deficient number, since it is larger than the sum of its proper divisors (21813583).

68942705 is a wasteful number, since it uses less digits than its factorization.

68942705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1097 (or 1084 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 41.

The square root of 68942705 is about 8303.1743929656. The cubic root of 68942705 is about 410.0430353399.

The spelling of 68942705 in words is "sixty-eight million, nine hundred forty-two thousand, seven hundred five".