70670217 has 8 divisors (see below), whose sum is σ = 94915296. Its totient is φ = 46769312.

The previous prime is 70670213. The next prime is 70670219. The reversal of 70670217 is 71207607.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 70670217 - 2² = 70670213 is a prime.

It is not an unprimeable number, because it can be changed into a prime (70670213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85563 + ... + 86384.

It is an arithmetic number, because the mean of its divisors is an integer number (11864412).

Almost surely, 2^70670217 is an apocalyptic number.

It is an amenable number.

70670217 is a deficient number, since it is larger than the sum of its proper divisors (24245079).

70670217 is a wasteful number, since it uses less digits than its factorization.

70670217 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172087.

The product of its (nonzero) digits is 4116, while the sum is 30.

The square root of 70670217 is about 8406.5579757711. The cubic root of 70670217 is about 413.4396664656.

The spelling of 70670217 in words is "seventy million, six hundred seventy thousand, two hundred seventeen".