70220805 has 16 divisors (see below), whose sum is σ = 112985280. Its totient is φ = 37240448.

The previous prime is 70220767. The next prime is 70220819. The reversal of 70220805 is 50802207.

It is a cyclic number.

It is not a de Polignac number, because 70220805 - 2¹⁶ = 70155269 is a prime.

It is a super-2 number, since 2×70220805² = 9861922909696050, which contains 22 as substring.

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 15 ways as a sum of consecutive naturals, for example, 10392 + ... + 15761.

It is an arithmetic number, because the mean of its divisors is an integer number (7061580).

Almost surely, 2^70220805 is an apocalyptic number.

It is an amenable number.

70220805 is a deficient number, since it is larger than the sum of its proper divisors (42764475).

70220805 is a wasteful number, since it uses less digits than its factorization.

70220805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26340.

The product of its (nonzero) digits is 1120, while the sum is 24.

The square root of 70220805 is about 8379.7854984480. The cubic root of 70220805 is about 412.5614086722.

The spelling of 70220805 in words is "seventy million, two hundred twenty thousand, eight hundred five".