64078401 has 16 divisors (see below), whose sum is σ = 87091200. Its totient is φ = 41899728.

The previous prime is 64078373. The next prime is 64078403. The reversal of 64078401 is 10487046.

It is not a de Polignac number, because 64078401 - 2⁶ = 64078337 is a prime.

It is not an unprimeable number, because it can be changed into a prime (64078403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 38770 + ... + 40388.

It is an arithmetic number, because the mean of its divisors is an integer number (5443200).

Almost surely, 2^64078401 is an apocalyptic number.

It is an amenable number.

64078401 is a deficient number, since it is larger than the sum of its proper divisors (23012799).

64078401 is a wasteful number, since it uses less digits than its factorization.

64078401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1868.

The product of its (nonzero) digits is 5376, while the sum is 30.

The square root of 64078401 is about 8004.8985627552. The cubic root of 64078401 is about 400.1632687659.

The spelling of 64078401 in words is "sixty-four million, seventy-eight thousand, four hundred one".