70447093 has 4 divisors (see below), whose sum is σ = 70472140. Its totient is φ = 70422048.

The previous prime is 70447081. The next prime is 70447141. The reversal of 70447093 is 39074407.

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 34363044 + 36084049 = 5862^2 + 6007^2 .

It is a cyclic number.

It is not a de Polignac number, because 70447093 - 2⁹ = 70446581 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70447033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7680 + ... + 14137.

It is an arithmetic number, because the mean of its divisors is an integer number (17618035).

Almost surely, 2^70447093 is an apocalyptic number.

It is an amenable number.

70447093 is a deficient number, since it is larger than the sum of its proper divisors (25047).

70447093 is a wasteful number, since it uses less digits than its factorization.

70447093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25046.

The product of its (nonzero) digits is 21168, while the sum is 34.

The square root of 70447093 is about 8393.2766545611. The cubic root of 70447093 is about 413.0040960534.

The spelling of 70447093 in words is "seventy million, four hundred forty-seven thousand, ninety-three".