975539869 has 2 divisors, whose sum is σ = 975539870. Its totient is φ = 975539868.

The previous prime is 975539867. The next prime is 975539987. The reversal of 975539869 is 968935579.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 741908644 + 233631225 = 27238^2 + 15285^2 .

It is a cyclic number.

It is not a de Polignac number, because 975539869 - 2¹ = 975539867 is a prime.

It is a super-2 number, since 2×975539869² = 1903356072017074322, which contains 22 as substring.

Together with 975539867, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (975539861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 487769934 + 487769935.

It is an arithmetic number, because the mean of its divisors is an integer number (487769935).

Almost surely, 2^975539869 is an apocalyptic number.

It is an amenable number.

975539869 is a deficient number, since it is larger than the sum of its proper divisors (1).

975539869 is an equidigital number, since it uses as much as digits as its factorization.

975539869 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18370800, while the sum is 61.

The square root of 975539869 is about 31233.6336182648. The cubic root of 975539869 is about 991.7792270823.

The spelling of 975539869 in words is "nine hundred seventy-five million, five hundred thirty-nine thousand, eight hundred sixty-nine".