70809146 has 8 divisors (see below), whose sum is σ = 109640064. Its totient is φ = 34262460.

The previous prime is 70809107. The next prime is 70809149. The reversal of 70809146 is 64190807.

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

It is not an unprimeable number, because it can be changed into a prime (70809149) by changing a digit.

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, 570980 + ... + 571103.

It is an arithmetic number, because the mean of its divisors is an integer number (13705008).

Almost surely, 2^70809146 is an apocalyptic number.

70809146 is a deficient number, since it is larger than the sum of its proper divisors (38830918).

70809146 is a wasteful number, since it uses less digits than its factorization.

70809146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1142116.

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 70809146 is about 8414.8170508930. The cubic root of 70809146 is about 413.7104130579.

The spelling of 70809146 in words is "seventy million, eight hundred nine thousand, one hundred forty-six".