64078079 has 4 divisors (see below), whose sum is σ = 69007176. Its totient is φ = 59148984.

The previous prime is 64078057. The next prime is 64078097. The reversal of 64078079 is 97087046.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 64078079 - 2¹² = 64073983 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64078009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2464529 + ... + 2464554.

It is an arithmetic number, because the mean of its divisors is an integer number (17251794).

Almost surely, 2^64078079 is an apocalyptic number.

64078079 is a deficient number, since it is larger than the sum of its proper divisors (4929097).

64078079 is a wasteful number, since it uses less digits than its factorization.

64078079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4929096.

The product of its (nonzero) digits is 84672, while the sum is 41.

The square root of 64078079 is about 8004.8784500453. The cubic root of 64078079 is about 400.1625984787.

The spelling of 64078079 in words is "sixty-four million, seventy-eight thousand, seventy-nine".