64350078 has 16 divisors (see below), whose sum is σ = 138600336. Its totient is φ = 19800000.

The previous prime is 64350071. The next prime is 64350103. The reversal of 64350078 is 87005346.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64350071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 412423 + ... + 412578.

It is an arithmetic number, because the mean of its divisors is an integer number (8662521).

Almost surely, 2^64350078 is an apocalyptic number.

64350078 is an abundant number, since it is smaller than the sum of its proper divisors (74250258).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64350078 is a wasteful number, since it uses less digits than its factorization.

64350078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 825019.

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 64350078 is about 8021.8500359954. The cubic root of 64350078 is about 400.7280033905.

It can be divided in two parts, 643 and 50078, that added together give a triangular number (50721 = T₃₁₈).

The spelling of 64350078 in words is "sixty-four million, three hundred fifty thousand, seventy-eight".