64461853 has 2 divisors, whose sum is σ = 64461854. Its totient is φ = 64461852.

The previous prime is 64461827. The next prime is 64461877. The reversal of 64461853 is 35816446.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 37970244 + 26491609 = 6162^2 + 5147^2 .

It is a cyclic number.

It is not a de Polignac number, because 64461853 - 2⁵ = 64461821 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64468853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32230926 + 32230927.

It is an arithmetic number, because the mean of its divisors is an integer number (32230927).

Almost surely, 2^64461853 is an apocalyptic number.

It is an amenable number.

64461853 is a deficient number, since it is larger than the sum of its proper divisors (1).

64461853 is an equidigital number, since it uses as much as digits as its factorization.

64461853 is an evil number, because the sum of its binary digits is even.

The product of its digits is 69120, while the sum is 37.

The square root of 64461853 is about 8028.8139223674. The cubic root of 64461853 is about 400.9598884429.

The spelling of 64461853 in words is "sixty-four million, four hundred sixty-one thousand, eight hundred fifty-three".