68900947 has 8 divisors (see below), whose sum is σ = 69512256. Its totient is φ = 68292672.

The previous prime is 68900927. The next prime is 68900957. The reversal of 68900947 is 74900986.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68900947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68900927) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71823 + ... + 72775.

It is an arithmetic number, because the mean of its divisors is an integer number (8689032).

Almost surely, 2^68900947 is an apocalyptic number.

68900947 is a deficient number, since it is larger than the sum of its proper divisors (611309).

68900947 is a wasteful number, since it uses less digits than its factorization.

68900947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1517.

The product of its (nonzero) digits is 108864, while the sum is 43.

The square root of 68900947 is about 8300.6594316355. The cubic root of 68900947 is about 409.9602321135.

The spelling of 68900947 in words is "sixty-eight million, nine hundred thousand, nine hundred forty-seven".