64338401 has 2 divisors, whose sum is σ = 64338402. Its totient is φ = 64338400.

The previous prime is 64338377. The next prime is 64338409. The reversal of 64338401 is 10483346.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 61701025 + 2637376 = 7855^2 + 1624^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64338401 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (64338409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32169200 + 32169201.

It is an arithmetic number, because the mean of its divisors is an integer number (32169201).

Almost surely, 2^64338401 is an apocalyptic number.

It is an amenable number.

64338401 is a deficient number, since it is larger than the sum of its proper divisors (1).

64338401 is an equidigital number, since it uses as much as digits as its factorization.

64338401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 64338401 is about 8021.1221783489. The cubic root of 64338401 is about 400.7037631507.

The spelling of 64338401 in words is "sixty-four million, three hundred thirty-eight thousand, four hundred one".