70670705 has 16 divisors (see below), whose sum is σ = 97244544. Its totient is φ = 48297600.

The previous prime is 70670689. The next prime is 70670711. The reversal of 70670705 is 50707607.

It is a happy number.

It is not a de Polignac number, because 70670705 - 2⁴ = 70670689 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 7730 + ... + 14180.

It is an arithmetic number, because the mean of its divisors is an integer number (6077784).

Almost surely, 2^70670705 is an apocalyptic number.

It is an amenable number.

70670705 is a deficient number, since it is larger than the sum of its proper divisors (26573839).

70670705 is a wasteful number, since it uses less digits than its factorization.

70670705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6776.

The product of its (nonzero) digits is 10290, while the sum is 32.

The square root of 70670705 is about 8406.5870006799. The cubic root of 70670705 is about 413.4406181069.

The spelling of 70670705 in words is "seventy million, six hundred seventy thousand, seven hundred five".