9975772 has 6 divisors (see below), whose sum is σ = 17457608. Its totient is φ = 4987884.

The previous prime is 9975737. The next prime is 9975773. The reversal of 9975772 is 2775799.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9975773) 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 as a sum of consecutive naturals, namely, 1246968 + ... + 1246975.

Almost surely, 2^9975772 is an apocalyptic number.

It is an amenable number.

9975772 is a deficient number, since it is larger than the sum of its proper divisors (7481836).

9975772 is a wasteful number, since it uses less digits than its factorization.

9975772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2493947 (or 2493945 counting only the distinct ones).

The product of its digits is 277830, while the sum is 46.

The square root of 9975772 is about 3158.4445538904. Note that the first 3 decimals coincide. The cubic root of 9975772 is about 215.2693361521.

The spelling of 9975772 in words is "nine million, nine hundred seventy-five thousand, seven hundred seventy-two".