70330889 has 4 divisors (see below), whose sum is σ = 70539924. Its totient is φ = 70121856.

The previous prime is 70330801. The next prime is 70330903. The reversal of 70330889 is 98803307.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 98803307 = 1409 ⋅70123.

It can be written as a sum of positive squares in 2 ways, for example, as 7398400 + 62932489 = 2720^2 + 7933^2 .

It is a cyclic number.

It is not a de Polignac number, because 70330889 - 2⁸ = 70330633 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 (70330489) 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, 104012 + ... + 104685.

It is an arithmetic number, because the mean of its divisors is an integer number (17634981).

Almost surely, 2^70330889 is an apocalyptic number.

It is an amenable number.

70330889 is a deficient number, since it is larger than the sum of its proper divisors (209035).

70330889 is a wasteful number, since it uses less digits than its factorization.

70330889 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 209034.

The product of its (nonzero) digits is 36288, while the sum is 38.

The square root of 70330889 is about 8386.3513520482. The cubic root of 70330889 is about 412.7768846882.

The spelling of 70330889 in words is "seventy million, three hundred thirty thousand, eight hundred eighty-nine".