32099989 has 2 divisors, whose sum is σ = 32099990. Its totient is φ = 32099988.

The previous prime is 32099959. The next prime is 32099999. The reversal of 32099989 is 98999023.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 32012964 + 87025 = 5658^2 + 295^2 .

It is a cyclic number.

It is not a de Polignac number, because 32099989 - 2⁵ = 32099957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (32099909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16049994 + 16049995.

It is an arithmetic number, because the mean of its divisors is an integer number (16049995).

Almost surely, 2^32099989 is an apocalyptic number.

It is an amenable number.

32099989 is a deficient number, since it is larger than the sum of its proper divisors (1).

32099989 is an equidigital number, since it uses as much as digits as its factorization.

32099989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 314928, while the sum is 49.

The square root of 32099989 is about 5665.6852189298. The cubic root of 32099989 is about 317.8105387525.

The spelling of 32099989 in words is "thirty-two million, ninety-nine thousand, nine hundred eighty-nine".