70381805 has 16 divisors (see below), whose sum is σ = 91144704. Its totient is φ = 51865920.

The previous prime is 70381777. The next prime is 70381813. The reversal of 70381805 is 50818307.

It is not a de Polignac number, because 70381805 - 2⁶ = 70381741 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44132 + ... + 45698.

It is an arithmetic number, because the mean of its divisors is an integer number (5696544).

Almost surely, 2^70381805 is an apocalyptic number.

It is an amenable number.

70381805 is a deficient number, since it is larger than the sum of its proper divisors (20762899).

70381805 is a wasteful number, since it uses less digits than its factorization.

70381805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2276.

The product of its (nonzero) digits is 6720, while the sum is 32.

The square root of 70381805 is about 8389.3864495564. The cubic root of 70381805 is about 412.8764705101.

The spelling of 70381805 in words is "seventy million, three hundred eighty-one thousand, eight hundred five".