75367989 has 10 divisors (see below), whose sum is σ = 112586870. Its totient is φ = 50245272.

The previous prime is 75367973. The next prime is 75367993. The reversal of 75367989 is 98976357.

It can be written as a sum of positive squares in only one way, i.e., 71267364 + 4100625 = 8442^2 + 2025^2 .

It is not a de Polignac number, because 75367989 - 2⁴ = 75367973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75367909) 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 9 ways as a sum of consecutive naturals, for example, 465154 + ... + 465315.

It is an arithmetic number, because the mean of its divisors is an integer number (11258687).

Almost surely, 2^75367989 is an apocalyptic number.

It is an amenable number.

75367989 is a deficient number, since it is larger than the sum of its proper divisors (37218881).

75367989 is an equidigital number, since it uses as much as digits as its factorization.

75367989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 930481 (or 930472 counting only the distinct ones).

The product of its digits is 2857680, while the sum is 54.

The square root of 75367989 is about 8681.4738956009. The cubic root of 75367989 is about 422.4049275478.

The spelling of 75367989 in words is "seventy-five million, three hundred sixty-seven thousand, nine hundred eighty-nine".