64448401 has 2 divisors, whose sum is σ = 64448402. Its totient is φ = 64448400.

The previous prime is 64448393. The next prime is 64448453. The reversal of 64448401 is 10484446.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39438400 + 25010001 = 6280^2 + 5001^2 .

It is a cyclic number.

It is not a de Polignac number, because 64448401 - 2³ = 64448393 is a prime.

It is not a weakly prime, because it can be changed into another prime (64448471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32224200 + 32224201.

It is an arithmetic number, because the mean of its divisors is an integer number (32224201).

Almost surely, 2^64448401 is an apocalyptic number.

It is an amenable number.

64448401 is a deficient number, since it is larger than the sum of its proper divisors (1).

64448401 is an equidigital number, since it uses as much as digits as its factorization.

64448401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12288, while the sum is 31.

The square root of 64448401 is about 8027.9761459536. The cubic root of 64448401 is about 400.9319955243.

The spelling of 64448401 in words is "sixty-four million, four hundred forty-eight thousand, four hundred one".