70947073 has 4 divisors (see below), whose sum is σ = 70977028. Its totient is φ = 70917120.

The previous prime is 70947067. The next prime is 70947077. The reversal of 70947073 is 37074907.

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 42941809 + 28005264 = 6553^2 + 5292^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70947073 is a prime.

It is a super-3 number, since 3×70947073³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70947077) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11088 + ... + 16273.

It is an arithmetic number, because the mean of its divisors is an integer number (17744257).

Almost surely, 2^70947073 is an apocalyptic number.

It is an amenable number.

70947073 is a deficient number, since it is larger than the sum of its proper divisors (29955).

70947073 is a wasteful number, since it uses less digits than its factorization.

70947073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29954.

The product of its (nonzero) digits is 37044, while the sum is 37.

The square root of 70947073 is about 8423.0085480189. The cubic root of 70947073 is about 413.9788568477.

The spelling of 70947073 in words is "seventy million, nine hundred forty-seven thousand, seventy-three".