70868663 has 4 divisors (see below), whose sum is σ = 73312440. Its totient is φ = 68424888.

The previous prime is 70868659. The next prime is 70868669. The reversal of 70868663 is 36686807.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 70868663 - 2² = 70868659 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70868669) 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, 1221845 + ... + 1221902.

It is an arithmetic number, because the mean of its divisors is an integer number (18328110).

Almost surely, 2^70868663 is an apocalyptic number.

70868663 is a deficient number, since it is larger than the sum of its proper divisors (2443777).

70868663 is a wasteful number, since it uses less digits than its factorization.

70868663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2443776.

The product of its (nonzero) digits is 290304, while the sum is 44.

The square root of 70868663 is about 8418.3527486082. The cubic root of 70868663 is about 413.8262921901.

The spelling of 70868663 in words is "seventy million, eight hundred sixty-eight thousand, six hundred sixty-three".