70535889 has 6 divisors (see below), whose sum is σ = 101885186. Its totient is φ = 47023920.

The previous prime is 70535887. The next prime is 70535897. The reversal of 70535889 is 98853507.

It can be written as a sum of positive squares in only one way, i.e., 35820225 + 34715664 = 5985^2 + 5892^2 .

It is not a de Polignac number, because 70535889 - 2¹ = 70535887 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (70535887) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3918652 + ... + 3918669.

Almost surely, 2^70535889 is an apocalyptic number.

It is an amenable number.

70535889 is a deficient number, since it is larger than the sum of its proper divisors (31349297).

70535889 is a wasteful number, since it uses less digits than its factorization.

70535889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7837327 (or 7837324 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 45.

The square root of 70535889 is about 8398.5646988042. The cubic root of 70535889 is about 413.1775487471.

The spelling of 70535889 in words is "seventy million, five hundred thirty-five thousand, eight hundred eighty-nine".