308713923 has 40 divisors (see below), whose sum is σ = 537042528. Its totient is φ = 173062656.

The previous prime is 308713891. The next prime is 308713927. The reversal of 308713923 is 329317803.

It is a happy number.

It is not a de Polignac number, because 308713923 - 2⁵ = 308713891 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (308713927) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 24915 + ... + 35187.

Almost surely, 2^308713923 is an apocalyptic number.

308713923 is a deficient number, since it is larger than the sum of its proper divisors (228328605).

308713923 is a wasteful number, since it uses less digits than its factorization.

308713923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10345 (or 10336 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 36.

The square root of 308713923 is about 17570.2567710321. The cubic root of 308713923 is about 675.8527296976.

The spelling of 308713923 in words is "three hundred eight million, seven hundred thirteen thousand, nine hundred twenty-three".