70243389 has 8 divisors (see below), whose sum is σ = 104064320. Its totient is φ = 46828908.

The previous prime is 70243367. The next prime is 70243417. The reversal of 70243389 is 98334207.

It is not a de Polignac number, because 70243389 - 2¹³ = 70235197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70243309) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1300777 + ... + 1300830.

It is an arithmetic number, because the mean of its divisors is an integer number (13008040).

Almost surely, 2^70243389 is an apocalyptic number.

It is an amenable number.

70243389 is a deficient number, since it is larger than the sum of its proper divisors (33820931).

70243389 is a wasteful number, since it uses less digits than its factorization.

70243389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2601616 (or 2601610 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 70243389 is about 8381.1329186453. The cubic root of 70243389 is about 412.6056324516.

The spelling of 70243389 in words is "seventy million, two hundred forty-three thousand, three hundred eighty-nine".