975344409 has 56 divisors (see below), whose sum is σ = 1592570952. Its totient is φ = 593464320.

The previous prime is 975344401. The next prime is 975344411. The reversal of 975344409 is 904443579.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 60886809 + 914457600 = 7803^2 + 30240^2 .

It is not a de Polignac number, because 975344409 - 2³ = 975344401 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (975344401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 918739 + ... + 919799.

It is an arithmetic number, because the mean of its divisors is an integer number (28438767).

Almost surely, 2^975344409 is an apocalyptic number.

It is an amenable number.

975344409 is a deficient number, since it is larger than the sum of its proper divisors (617226543).

975344409 is a wasteful number, since it uses less digits than its factorization.

975344409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1189 (or 1174 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 45.

The square root of 975344409 is about 31230.5044627845. The cubic root of 975344409 is about 991.7129847474.

The spelling of 975344409 in words is "nine hundred seventy-five million, three hundred forty-four thousand, four hundred nine".