64306678 has 16 divisors (see below), whose sum is σ = 101790000. Its totient is φ = 30385152.

The previous prime is 64306663. The next prime is 64306687. The reversal of 64306678 is 87660346.

It is a self number, because there is not a number n which added to its sum of digits gives 64306678.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15178 + ... + 18946.

It is an arithmetic number, because the mean of its divisors is an integer number (6361875).

Almost surely, 2^64306678 is an apocalyptic number.

64306678 is a deficient number, since it is larger than the sum of its proper divisors (37483322).

64306678 is a wasteful number, since it uses less digits than its factorization.

64306678 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4239.

The product of its (nonzero) digits is 145152, while the sum is 40.

The square root of 64306678 is about 8019.1444680839. The cubic root of 64306678 is about 400.6378946852.

The spelling of 64306678 in words is "sixty-four million, three hundred six thousand, six hundred seventy-eight".