915423073 has 4 divisors (see below), whose sum is σ = 916074180. Its totient is φ = 914771968.

The previous prime is 915423043. The next prime is 915423079. The reversal of 915423073 is 370324519.

915423073 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 63250209 + 852172864 = 7953^2 + 29192^2 .

It is a cyclic number.

It is not a de Polignac number, because 915423073 - 2⁹ = 915422561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (915423079) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 323440 + ... + 326257.

It is an arithmetic number, because the mean of its divisors is an integer number (229018545).

Almost surely, 2^915423073 is an apocalyptic number.

It is an amenable number.

915423073 is a deficient number, since it is larger than the sum of its proper divisors (651107).

915423073 is a wasteful number, since it uses less digits than its factorization.

915423073 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 651106.

The product of its (nonzero) digits is 22680, while the sum is 34.

The square root of 915423073 is about 30255.9592973021. The cubic root of 915423073 is about 970.9732934547.

The spelling of 915423073 in words is "nine hundred fifteen million, four hundred twenty-three thousand, seventy-three".