871540938 has 32 divisors (see below), whose sum is σ = 2050686720. Its totient is φ = 273424320.

The previous prime is 871540937. The next prime is 871540939. The reversal of 871540938 is 839045178.

871540938 is a `hidden beast` number, since 8 + 71 + 540 + 9 + 38 = 666.

It is an interprime number because it is at equal distance from previous prime (871540937) and next prime (871540939).

It is a junction number, because it is equal to n+sod(n) for n = 871540893 and 871540902.

It is not an unprimeable number, because it can be changed into a prime (871540931) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 473778 + ... + 475613.

It is an arithmetic number, because the mean of its divisors is an integer number (64083960).

Almost surely, 2^871540938 is an apocalyptic number.

871540938 is an abundant number, since it is smaller than the sum of its proper divisors (1179145782).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

871540938 is a wasteful number, since it uses less digits than its factorization.

871540938 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 949419 (or 949413 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 45.

The square root of 871540938 is about 29521.8721967290. The cubic root of 871540938 is about 955.2035559260.

The spelling of 871540938 in words is "eight hundred seventy-one million, five hundred forty thousand, nine hundred thirty-eight".