70668871 has 48 divisors (see below), whose sum is σ = 94445568. Its totient is φ = 51667200.

The previous prime is 70668869. The next prime is 70668887. The reversal of 70668871 is 17886607.

It is not a de Polignac number, because 70668871 - 2¹ = 70668869 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70668071) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1503570 + ... + 1503616.

It is an arithmetic number, because the mean of its divisors is an integer number (1967616).

Almost surely, 2^70668871 is an apocalyptic number.

70668871 is a deficient number, since it is larger than the sum of its proper divisors (23776697).

70668871 is a wasteful number, since it uses less digits than its factorization.

70668871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152 (or 139 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 43.

The square root of 70668871 is about 8406.4779188433. The cubic root of 70668871 is about 413.4370416290.

The spelling of 70668871 in words is "seventy million, six hundred sixty-eight thousand, eight hundred seventy-one".