64461413 has 2 divisors, whose sum is σ = 64461414. Its totient is φ = 64461412.

The previous prime is 64461379. The next prime is 64461451. The reversal of 64461413 is 31416446.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 52085089 + 12376324 = 7217^2 + 3518^2 .

It is a cyclic number.

It is not a de Polignac number, because 64461413 - 2⁶ = 64461349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64461013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32230706 + 32230707.

It is an arithmetic number, because the mean of its divisors is an integer number (32230707).

Almost surely, 2^64461413 is an apocalyptic number.

It is an amenable number.

64461413 is a deficient number, since it is larger than the sum of its proper divisors (1).

64461413 is an equidigital number, since it uses as much as digits as its factorization.

64461413 is an evil number, because the sum of its binary digits is even.

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

The square root of 64461413 is about 8028.7865210130. The cubic root of 64461413 is about 400.9589761578.

Adding to 64461413 its reverse (31416446), we get a palindrome (95877859).

The spelling of 64461413 in words is "sixty-four million, four hundred sixty-one thousand, four hundred thirteen".