971487205 has 12 divisors (see below), whose sum is σ = 1262359620. Its totient is φ = 717405312.

The previous prime is 971487197. The next prime is 971487221. The reversal of 971487205 is 502784179.

It can be written as a sum of positive squares in 6 ways, for example, as 362483521 + 609003684 = 19039^2 + 24678^2 .

It is not a de Polignac number, because 971487205 - 2³ = 971487197 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 574000 + ... + 575689.

It is an arithmetic number, because the mean of its divisors is an integer number (105196635).

Almost surely, 2^971487205 is an apocalyptic number.

It is an amenable number.

971487205 is a deficient number, since it is larger than the sum of its proper divisors (290872415).

971487205 is a wasteful number, since it uses less digits than its factorization.

971487205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1149720 (or 1149707 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 43.

The square root of 971487205 is about 31168.6894976353. The cubic root of 971487205 is about 990.4039452824.

The spelling of 971487205 in words is "nine hundred seventy-one million, four hundred eighty-seven thousand, two hundred five".