87973579 has 2 divisors, whose sum is σ = 87973580. Its totient is φ = 87973578.

The previous prime is 87973549. The next prime is 87973583. The reversal of 87973579 is 97537978.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 87973579 - 2⁷ = 87973451 is a prime.

It is a plaindrome in base 12.

It is not a weakly prime, because it can be changed into another prime (87973549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43986789 + 43986790.

It is an arithmetic number, because the mean of its divisors is an integer number (43986790).

Almost surely, 2^87973579 is an apocalyptic number.

87973579 is a deficient number, since it is larger than the sum of its proper divisors (1).

87973579 is an equidigital number, since it uses as much as digits as its factorization.

87973579 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3333960, while the sum is 55.

The square root of 87973579 is about 9379.4231698970. The cubic root of 87973579 is about 444.7514986748.

The spelling of 87973579 in words is "eighty-seven million, nine hundred seventy-three thousand, five hundred seventy-nine".