70230805 has 4 divisors (see below), whose sum is σ = 84276972. Its totient is φ = 56184640.

The previous prime is 70230793. The next prime is 70230833. The reversal of 70230805 is 50803207.

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 27941796 + 42289009 = 5286^2 + 6503^2 .

It is not a de Polignac number, because 70230805 - 2¹¹ = 70228757 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 70230805.

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 3 ways as a sum of consecutive naturals, for example, 7023076 + ... + 7023085.

It is an arithmetic number, because the mean of its divisors is an integer number (21069243).

Almost surely, 2^70230805 is an apocalyptic number.

It is an amenable number.

70230805 is a deficient number, since it is larger than the sum of its proper divisors (14046167).

70230805 is a wasteful number, since it uses less digits than its factorization.

70230805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14046166.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 70230805 is about 8380.3821511910. The cubic root of 70230805 is about 412.5809917490.

The spelling of 70230805 in words is "seventy million, two hundred thirty thousand, eight hundred five".