70213918 has 8 divisors (see below), whose sum is σ = 105356448. Its totient is φ = 35095104.

The previous prime is 70213907. The next prime is 70213921. The reversal of 70213918 is 81931207.

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

It is a self number, because there is not a number n which added to its sum of digits gives 70213918.

It is a congruent 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 3 ways as a sum of consecutive naturals, for example, 8430 + ... + 14542.

It is an arithmetic number, because the mean of its divisors is an integer number (13169556).

Almost surely, 2^70213918 is an apocalyptic number.

70213918 is a deficient number, since it is larger than the sum of its proper divisors (35142530).

70213918 is a wasteful number, since it uses less digits than its factorization.

70213918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11858.

The product of its (nonzero) digits is 3024, while the sum is 31.

The square root of 70213918 is about 8379.3745589990. The cubic root of 70213918 is about 412.5479207260.

The spelling of 70213918 in words is "seventy million, two hundred thirteen thousand, nine hundred eighteen".