32201989 has 2 divisors, whose sum is σ = 32201990. Its totient is φ = 32201988.

The previous prime is 32201929. The next prime is 32201999. The reversal of 32201989 is 98910223.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30802500 + 1399489 = 5550^2 + 1183^2 .

It is a cyclic number.

It is not a de Polignac number, because 32201989 - 2¹¹ = 32199941 is a prime.

It is a super-2 number, since 2×32201989² = 2073936191112242, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (32201929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16100994 + 16100995.

It is an arithmetic number, because the mean of its divisors is an integer number (16100995).

Almost surely, 2^32201989 is an apocalyptic number.

It is an amenable number.

32201989 is a deficient number, since it is larger than the sum of its proper divisors (1).

32201989 is an equidigital number, since it uses as much as digits as its factorization.

32201989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 32201989 is about 5674.6796385347. The cubic root of 32201989 is about 318.1468047038.

The spelling of 32201989 in words is "thirty-two million, two hundred one thousand, nine hundred eighty-nine".