201602789 has 2 divisors, whose sum is σ = 201602790. Its totient is φ = 201602788.

The previous prime is 201602783. The next prime is 201602837. The reversal of 201602789 is 987206102.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 172712164 + 28890625 = 13142^2 + 5375^2 .

It is a cyclic number.

It is not a de Polignac number, because 201602789 - 2⁴ = 201602773 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201602783) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100801394 + 100801395.

It is an arithmetic number, because the mean of its divisors is an integer number (100801395).

Almost surely, 2^201602789 is an apocalyptic number.

It is an amenable number.

201602789 is a deficient number, since it is larger than the sum of its proper divisors (1).

201602789 is an equidigital number, since it uses as much as digits as its factorization.

201602789 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 201602789 is about 14198.6896930668. The cubic root of 201602789 is about 586.3615874987.

The spelling of 201602789 in words is "two hundred one million, six hundred two thousand, seven hundred eighty-nine".