64300381 has 2 divisors, whose sum is σ = 64300382. Its totient is φ = 64300380.

The previous prime is 64300373. The next prime is 64300393. The reversal of 64300381 is 18300346.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 36905625 + 27394756 = 6075^2 + 5234^2 .

It is a cyclic number.

It is not a de Polignac number, because 64300381 - 2³ = 64300373 is a prime.

It is a super-2 number, since 2×64300381² = 8269077993490322, which contains 22 as substring.

It is equal to p_3801823 and since 64300381 and 3801823 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64300331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32150190 + 32150191.

It is an arithmetic number, because the mean of its divisors is an integer number (32150191).

Almost surely, 2^64300381 is an apocalyptic number.

It is an amenable number.

64300381 is a deficient number, since it is larger than the sum of its proper divisors (1).

64300381 is an equidigital number, since it uses as much as digits as its factorization.

64300381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 64300381 is about 8018.7518355415. The cubic root of 64300381 is about 400.6248172503.

The spelling of 64300381 in words is "sixty-four million, three hundred thousand, three hundred eighty-one".