971850285 has 128 divisors (see below), whose sum is σ = 2101248000. Its totient is φ = 416295936.

The previous prime is 971850239. The next prime is 971850329. The reversal of 971850285 is 582058179.

It is a happy number.

It is not a de Polignac number, because 971850285 - 2⁶ = 971850221 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 971850285.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 2028676 + ... + 2029154.

It is an arithmetic number, because the mean of its divisors is an integer number (16416000).

Almost surely, 2^971850285 is an apocalyptic number.

971850285 is a gapful number since it is divisible by the number (95) formed by its first and last digit.

It is an amenable number.

971850285 is an abundant number, since it is smaller than the sum of its proper divisors (1129397715).

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

971850285 is a wasteful number, since it uses less digits than its factorization.

971850285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 632 (or 626 counting only the distinct ones).

The product of its (nonzero) digits is 201600, while the sum is 45.

The square root of 971850285 is about 31174.5133883434. The cubic root of 971850285 is about 990.5273132053.

The spelling of 971850285 in words is "nine hundred seventy-one million, eight hundred fifty thousand, two hundred eighty-five".