70868665 has 16 divisors (see below), whose sum is σ = 102909312. Its totient is φ = 45736704.

The previous prime is 70868659. The next prime is 70868669. The reversal of 70868665 is 56686807.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 70868665 - 2¹⁹ = 70344377 is a prime.

It is a Duffinian 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 15 ways as a sum of consecutive naturals, for example, 58959 + ... + 60148.

It is an arithmetic number, because the mean of its divisors is an integer number (6431832).

Almost surely, 2^70868665 is an apocalyptic number.

It is an amenable number.

70868665 is a deficient number, since it is larger than the sum of its proper divisors (32040647).

70868665 is a wasteful number, since it uses less digits than its factorization.

70868665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119136.

The product of its (nonzero) digits is 483840, while the sum is 46.

The square root of 70868665 is about 8418.3528673963. The cubic root of 70868665 is about 413.8262960830.

It can be divided in two parts, 7086 and 8665, that added together give a palindrome (15751).

The spelling of 70868665 in words is "seventy million, eight hundred sixty-eight thousand, six hundred sixty-five".