923910985 has 8 divisors (see below), whose sum is σ = 1173910536. Its totient is φ = 695650560.

The previous prime is 923910973. The next prime is 923910997. The reversal of 923910985 is 589019329.

It is an interprime number because it is at equal distance from previous prime (923910973) and next prime (923910997).

It can be written as a sum of positive squares in 4 ways, for example, as 9634816 + 914276169 = 3104^2 + 30237^2 .

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

It is not a de Polignac number, because 923910985 - 2¹⁵ = 923878217 is a prime.

It is a super-2 number, since 2×923910985² = 1707223016407340450, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5434686 + ... + 5434855.

It is an arithmetic number, because the mean of its divisors is an integer number (146738817).

Almost surely, 2^923910985 is an apocalyptic number.

It is an amenable number.

923910985 is a deficient number, since it is larger than the sum of its proper divisors (249999551).

923910985 is a wasteful number, since it uses less digits than its factorization.

923910985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10869563.

The product of its (nonzero) digits is 174960, while the sum is 46.

The square root of 923910985 is about 30395.9040826227. The cubic root of 923910985 is about 973.9650591746.

The spelling of 923910985 in words is "nine hundred twenty-three million, nine hundred ten thousand, nine hundred eighty-five".