75929989 has 2 divisors, whose sum is σ = 75929990. Its totient is φ = 75929988.

The previous prime is 75929983. The next prime is 75930017. The reversal of 75929989 is 98992957.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 46009089 + 29920900 = 6783^2 + 5470^2 .

It is a cyclic number.

It is not a de Polignac number, because 75929989 - 2¹⁷ = 75798917 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (75929983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37964994 + 37964995.

It is an arithmetic number, because the mean of its divisors is an integer number (37964995).

Almost surely, 2^75929989 is an apocalyptic number.

It is an amenable number.

75929989 is a deficient number, since it is larger than the sum of its proper divisors (1).

75929989 is an equidigital number, since it uses as much as digits as its factorization.

75929989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3674160, while the sum is 58.

The square root of 75929989 is about 8713.7815556737. The cubic root of 75929989 is about 423.4522508144.

The spelling of 75929989 in words is "seventy-five million, nine hundred twenty-nine thousand, nine hundred eighty-nine".