64904101 has 2 divisors, whose sum is σ = 64904102. Its totient is φ = 64904100.

The previous prime is 64904083. The next prime is 64904131. The reversal of 64904101 is 10140946.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 57775201 + 7128900 = 7601^2 + 2670^2 .

It is a cyclic number.

It is not a de Polignac number, because 64904101 - 2⁹ = 64903589 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64904131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32452050 + 32452051.

It is an arithmetic number, because the mean of its divisors is an integer number (32452051).

Almost surely, 2^64904101 is an apocalyptic number.

It is an amenable number.

64904101 is a deficient number, since it is larger than the sum of its proper divisors (1).

64904101 is an equidigital number, since it uses as much as digits as its factorization.

64904101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 64904101 is about 8056.3081495186. The cubic root of 64904101 is about 401.8747433660.

The spelling of 64904101 in words is "sixty-four million, nine hundred four thousand, one hundred one".