70855805 has 4 divisors (see below), whose sum is σ = 85026972. Its totient is φ = 56684640.

The previous prime is 70855751. The next prime is 70855823. The reversal of 70855805 is 50855807.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 15665764 + 55190041 = 3958^2 + 7429^2 .

It is not a de Polignac number, because 70855805 - 2⁸ = 70855549 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 3 ways as a sum of consecutive naturals, for example, 7085576 + ... + 7085585.

It is an arithmetic number, because the mean of its divisors is an integer number (21256743).

Almost surely, 2^70855805 is an apocalyptic number.

It is an amenable number.

70855805 is a deficient number, since it is larger than the sum of its proper divisors (14171167).

70855805 is a wasteful number, since it uses less digits than its factorization.

70855805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14171166.

The product of its (nonzero) digits is 56000, while the sum is 38.

The square root of 70855805 is about 8417.5890253682. The cubic root of 70855805 is about 413.8012632606.

The spelling of 70855805 in words is "seventy million, eight hundred fifty-five thousand, eight hundred five".