32261389 has 2 divisors, whose sum is σ = 32261390. Its totient is φ = 32261388.

The previous prime is 32261357. The next prime is 32261399. The reversal of 32261389 is 98316223.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28708164 + 3553225 = 5358^2 + 1885^2 .

It is a cyclic number.

It is not a de Polignac number, because 32261389 - 2⁵ = 32261357 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (32261399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16130694 + 16130695.

It is an arithmetic number, because the mean of its divisors is an integer number (16130695).

Almost surely, 2^32261389 is an apocalyptic number.

It is an amenable number.

32261389 is a deficient number, since it is larger than the sum of its proper divisors (1).

32261389 is an equidigital number, since it uses as much as digits as its factorization.

32261389 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15552, while the sum is 34.

The square root of 32261389 is about 5679.9110028239. The cubic root of 32261389 is about 318.3423031076.

The spelling of 32261389 in words is "thirty-two million, two hundred sixty-one thousand, three hundred eighty-nine".