70906573 has 2 divisors, whose sum is σ = 70906574. Its totient is φ = 70906572.

The previous prime is 70906559. The next prime is 70906603. The reversal of 70906573 is 37560907.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 43059844 + 27846729 = 6562^2 + 5277^2 .

It is a cyclic number.

It is not a de Polignac number, because 70906573 - 2⁹ = 70906061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (70906543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35453286 + 35453287.

It is an arithmetic number, because the mean of its divisors is an integer number (35453287).

Almost surely, 2^70906573 is an apocalyptic number.

It is an amenable number.

70906573 is a deficient number, since it is larger than the sum of its proper divisors (1).

70906573 is an equidigital number, since it uses as much as digits as its factorization.

70906573 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 39690, while the sum is 37.

The square root of 70906573 is about 8420.6040757181. The cubic root of 70906573 is about 413.9000688427.

The spelling of 70906573 in words is "seventy million, nine hundred six thousand, five hundred seventy-three".