313928845 has 8 divisors (see below), whose sum is σ = 379243800. Its totient is φ = 249456960.

The previous prime is 313928837. The next prime is 313928869. The reversal of 313928845 is 548829313.

It can be written as a sum of positive squares in 4 ways, for example, as 426409 + 313502436 = 653^2 + 17706^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 313928845 - 2³ = 313928837 is a prime.

It is a super-3 number, since 3×313928845³ (a number of 26 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 209946 + ... + 211435.

It is an arithmetic number, because the mean of its divisors is an integer number (47405475).

Almost surely, 2^313928845 is an apocalyptic number.

It is an amenable number.

313928845 is a deficient number, since it is larger than the sum of its proper divisors (65314955).

313928845 is a wasteful number, since it uses less digits than its factorization.

313928845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 421535.

The product of its digits is 207360, while the sum is 43.

The square root of 313928845 is about 17718.0372784347. The cubic root of 313928845 is about 679.6370936979.

The spelling of 313928845 in words is "three hundred thirteen million, nine hundred twenty-eight thousand, eight hundred forty-five".