948926813 has 2 divisors, whose sum is σ = 948926814. Its totient is φ = 948926812.

The previous prime is 948926809. The next prime is 948926863. The reversal of 948926813 is 318629849.

It is a happy number.

It is an a-pointer prime, because the next prime (948926863) can be obtained adding 948926813 to its sum of digits (50).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 932264089 + 16662724 = 30533^2 + 4082^2 .

It is an emirp because it is prime and its reverse (318629849) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 948926813 - 2² = 948926809 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (948926863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 474463406 + 474463407.

It is an arithmetic number, because the mean of its divisors is an integer number (474463407).

Almost surely, 2^948926813 is an apocalyptic number.

It is an amenable number.

948926813 is a deficient number, since it is larger than the sum of its proper divisors (1).

948926813 is an equidigital number, since it uses as much as digits as its factorization.

948926813 is an evil number, because the sum of its binary digits is even.

The product of its digits is 746496, while the sum is 50.

The square root of 948926813 is about 30804.6557033186. The cubic root of 948926813 is about 982.6772597232.

The spelling of 948926813 in words is "nine hundred forty-eight million, nine hundred twenty-six thousand, eight hundred thirteen".