923158949 has 8 divisors (see below), whose sum is σ = 936489240. Its totient is φ = 909847296.

The previous prime is 923158931. The next prime is 923158987. The reversal of 923158949 is 949851329.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 7672900 + 915486049 = 2770^2 + 30257^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 923158949 - 2⁸ = 923158693 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 923158897 and 923158906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (923158919) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 118049 + ... + 125625.

It is an arithmetic number, because the mean of its divisors is an integer number (117061155).

Almost surely, 2^923158949 is an apocalyptic number.

It is an amenable number.

923158949 is a deficient number, since it is larger than the sum of its proper divisors (13330291).

923158949 is a wasteful number, since it uses less digits than its factorization.

923158949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9319.

The product of its digits is 699840, while the sum is 50.

The square root of 923158949 is about 30383.5308843459. The cubic root of 923158949 is about 973.7007279343.

The spelling of 923158949 in words is "nine hundred twenty-three million, one hundred fifty-eight thousand, nine hundred forty-nine".