64279047 has 16 divisors (see below), whose sum is σ = 98611200. Its totient is φ = 36482592.

The previous prime is 64279037. The next prime is 64279067. The reversal of 64279047 is 74097246.

64279047 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 64279047 - 2¹⁵ = 64246279 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 64278996 and 64279014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64279037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7143 + ... + 13400.

It is an arithmetic number, because the mean of its divisors is an integer number (6163200).

Almost surely, 2^64279047 is an apocalyptic number.

64279047 is a deficient number, since it is larger than the sum of its proper divisors (34332153).

64279047 is a wasteful number, since it uses less digits than its factorization.

64279047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20702.

The product of its (nonzero) digits is 84672, while the sum is 39.

The square root of 64279047 is about 8017.4214682777. The cubic root of 64279047 is about 400.5805050439.

The spelling of 64279047 in words is "sixty-four million, two hundred seventy-nine thousand, forty-seven".