709903973 has 6 divisors (see below), whose sum is σ = 749234214. Its totient is φ = 672540264.

The previous prime is 709903967. The next prime is 709903981. The reversal of 709903973 is 379309907.

It can be written as a sum of positive squares in only one way, i.e., 704530849 + 5373124 = 26543^2 + 2318^2 .

It is a de Polignac number, because none of the positive numbers 2^k-709903973 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (709903273) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 982886 + ... + 983607.

It is an arithmetic number, because the mean of its divisors is an integer number (124872369).

Almost surely, 2^709903973 is an apocalyptic number.

It is an amenable number.

709903973 is a deficient number, since it is larger than the sum of its proper divisors (39330241).

709903973 is a wasteful number, since it uses less digits than its factorization.

709903973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1966531 (or 1966512 counting only the distinct ones).

The product of its (nonzero) digits is 321489, while the sum is 47.

The square root of 709903973 is about 26644.0232134713. The cubic root of 709903973 is about 892.0719194527.

The spelling of 709903973 in words is "seven hundred nine million, nine hundred three thousand, nine hundred seventy-three".