915385 has 16 divisors (see below), whose sum is σ = 1166400. Its totient is φ = 688576.

The previous prime is 915379. The next prime is 915391. The reversal of 915385 is 583519.

It is an interprime number because it is at equal distance from previous prime (915379) and next prime (915391).

It is not a de Polignac number, because 915385 - 2⁵ = 915353 is a prime.

Its product of digits (5400) is a multiple of the sum of its prime divisors (200).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8502 + ... + 8608.

It is an arithmetic number, because the mean of its divisors is an integer number (72900).

2⁹¹⁵³⁸⁵ is an apocalyptic number.

It is an amenable number.

915385 is a deficient number, since it is larger than the sum of its proper divisors (251015).

915385 is a wasteful number, since it uses less digits than its factorization.

915385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200.

The product of its digits is 5400, while the sum is 31.

The square root of 915385 is about 956.7575450447. The cubic root of 915385 is about 97.0959832146.

It can be divided in two parts, 91 and 5385, that added together give a square (5476 = 74²).

The spelling of 915385 in words is "nine hundred fifteen thousand, three hundred eighty-five".