601634389 has 2 divisors, whose sum is σ = 601634390. Its totient is φ = 601634388.

The previous prime is 601634321. The next prime is 601634413. The reversal of 601634389 is 983436106.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 597411364 + 4223025 = 24442^2 + 2055^2 .

It is a cyclic number.

It is not a de Polignac number, because 601634389 - 2¹³ = 601626197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (601634309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 300817194 + 300817195.

It is an arithmetic number, because the mean of its divisors is an integer number (300817195).

Almost surely, 2^601634389 is an apocalyptic number.

It is an amenable number.

601634389 is a deficient number, since it is larger than the sum of its proper divisors (1).

601634389 is an equidigital number, since it uses as much as digits as its factorization.

601634389 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 93312, while the sum is 40.

The square root of 601634389 is about 24528.2365652323. The cubic root of 601634389 is about 844.1978026874.

The spelling of 601634389 in words is "six hundred one million, six hundred thirty-four thousand, three hundred eighty-nine".