32100989 has 2 divisors, whose sum is σ = 32100990. Its totient is φ = 32100988.

The previous prime is 32100983. The next prime is 32101021. The reversal of 32100989 is 98900123.

It is an a-pointer prime, because the next prime (32101021) can be obtained adding 32100989 to its sum of digits (32).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 27931225 + 4169764 = 5285^2 + 2042^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-32100989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (32100983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16050494 + 16050495.

It is an arithmetic number, because the mean of its divisors is an integer number (16050495).

Almost surely, 2^32100989 is an apocalyptic number.

It is an amenable number.

32100989 is a deficient number, since it is larger than the sum of its proper divisors (1).

32100989 is an equidigital number, since it uses as much as digits as its factorization.

32100989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 32.

The square root of 32100989 is about 5665.7734688214. The cubic root of 32100989 is about 317.8138389327.

The spelling of 32100989 in words is "thirty-two million, one hundred thousand, nine hundred eighty-nine".