70703009 has 24 divisors (see below), whose sum is σ = 81779040. Its totient is φ = 60922368.

The previous prime is 70702997. The next prime is 70703027. The reversal of 70703009 is 90030707.

It is a happy number.

It is not a de Polignac number, because 70703009 - 2²⁴ = 53925793 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (70703089) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 311354 + ... + 311580.

It is an arithmetic number, because the mean of its divisors is an integer number (3407460).

Almost surely, 2^70703009 is an apocalyptic number.

It is an amenable number.

70703009 is a deficient number, since it is larger than the sum of its proper divisors (11076031).

70703009 is a wasteful number, since it uses less digits than its factorization.

70703009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 369 (or 356 counting only the distinct ones).

The product of its (nonzero) digits is 1323, while the sum is 26.

The square root of 70703009 is about 8408.5081316486. The cubic root of 70703009 is about 413.5036039002.

The spelling of 70703009 in words is "seventy million, seven hundred three thousand, nine".