70666971 has 8 divisors (see below), whose sum is σ = 98319360. Its totient is φ = 45062952.

The previous prime is 70666969. The next prime is 70667039. The reversal of 70666971 is 17966607.

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

It is not a de Polignac number, because 70666971 - 2¹ = 70666969 is a prime.

It is not an unprimeable number, because it can be changed into a prime (70666571) 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, 512011 + ... + 512148.

It is an arithmetic number, because the mean of its divisors is an integer number (12289920).

Almost surely, 2^70666971 is an apocalyptic number.

70666971 is a deficient number, since it is larger than the sum of its proper divisors (27652389).

70666971 is a wasteful number, since it uses less digits than its factorization.

70666971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1024185.

The product of its (nonzero) digits is 95256, while the sum is 42.

The square root of 70666971 is about 8406.3649099953. The cubic root of 70666971 is about 413.4333363794.

The spelling of 70666971 in words is "seventy million, six hundred sixty-six thousand, nine hundred seventy-one".