60643381 has 2 divisors, whose sum is σ = 60643382. Its totient is φ = 60643380.

The previous prime is 60643361. The next prime is 60643391. The reversal of 60643381 is 18334606.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47748100 + 12895281 = 6910^2 + 3591^2 .

It is a cyclic number.

It is not a de Polignac number, because 60643381 - 2¹³ = 60635189 is a prime.

It is a super-2 number, since 2×60643381² = 7355239318222322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (60643351) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30321690 + 30321691.

It is an arithmetic number, because the mean of its divisors is an integer number (30321691).

Almost surely, 2^60643381 is an apocalyptic number.

It is an amenable number.

60643381 is a deficient number, since it is larger than the sum of its proper divisors (1).

60643381 is an equidigital number, since it uses as much as digits as its factorization.

60643381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 60643381 is about 7787.3860184275. The cubic root of 60643381 is about 392.8810984715.

Adding to 60643381 its reverse (18334606), we get a palindrome (78977987).

The spelling of 60643381 in words is "sixty million, six hundred forty-three thousand, three hundred eighty-one".