64878083 has 2 divisors, whose sum is σ = 64878084. Its totient is φ = 64878082.

The previous prime is 64878061. The next prime is 64878089. The reversal of 64878083 is 38087846.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 64878083 - 2⁶ = 64878019 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (64878089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32439041 + 32439042.

It is an arithmetic number, because the mean of its divisors is an integer number (32439042).

Almost surely, 2^64878083 is an apocalyptic number.

64878083 is a deficient number, since it is larger than the sum of its proper divisors (1).

64878083 is an equidigital number, since it uses as much as digits as its factorization.

64878083 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 258048, while the sum is 44.

The square root of 64878083 is about 8054.6932281745. The cubic root of 64878083 is about 401.8210365669.

The spelling of 64878083 in words is "sixty-four million, eight hundred seventy-eight thousand, eighty-three".