70989283 has 4 divisors (see below), whose sum is σ = 71245840. Its totient is φ = 70732728.

The previous prime is 70989253. The next prime is 70989307. The reversal of 70989283 is 38298907.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 70989283 - 2⁵ = 70989251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70989203) 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, 127863 + ... + 128416.

It is an arithmetic number, because the mean of its divisors is an integer number (17811460).

Almost surely, 2^70989283 is an apocalyptic number.

70989283 is a deficient number, since it is larger than the sum of its proper divisors (256557).

70989283 is a wasteful number, since it uses less digits than its factorization.

70989283 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256556.

The product of its (nonzero) digits is 217728, while the sum is 46.

The square root of 70989283 is about 8425.5138122253. The cubic root of 70989283 is about 414.0609395541.

The spelling of 70989283 in words is "seventy million, nine hundred eighty-nine thousand, two hundred eighty-three".