70395890 has 16 divisors (see below), whose sum is σ = 127084032. Its totient is φ = 28075824.

The previous prime is 70395883. The next prime is 70395953. The reversal of 70395890 is 9859307.

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 7 ways as a sum of consecutive naturals, for example, 6674 + ... + 13613.

It is an arithmetic number, because the mean of its divisors is an integer number (7942752).

Almost surely, 2^70395890 is an apocalyptic number.

70395890 is a deficient number, since it is larger than the sum of its proper divisors (56688142).

70395890 is a wasteful number, since it uses less digits than its factorization.

70395890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20641.

The product of its (nonzero) digits is 68040, while the sum is 41.

The square root of 70395890 is about 8390.2258610838. The cubic root of 70395890 is about 412.9040106639.

The spelling of 70395890 in words is "seventy million, three hundred ninety-five thousand, eight hundred ninety".