70830385 has 16 divisors (see below), whose sum is σ = 90993600. Its totient is φ = 52767936.

The previous prime is 70830349. The next prime is 70830401. The reversal of 70830385 is 58303807.

It is a cyclic number.

It is not a de Polignac number, because 70830385 - 2¹¹ = 70828337 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 70830385.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 714 + ... + 11923.

It is an arithmetic number, because the mean of its divisors is an integer number (5687100).

Almost surely, 2^70830385 is an apocalyptic number.

It is an amenable number.

70830385 is a deficient number, since it is larger than the sum of its proper divisors (20163215).

70830385 is a wasteful number, since it uses less digits than its factorization.

70830385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12720.

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 70830385 is about 8416.0789563787. The cubic root of 70830385 is about 413.7517726731.

The spelling of 70830385 in words is "seventy million, eight hundred thirty thousand, three hundred eighty-five".