64078071 has 16 divisors (see below), whose sum is σ = 87457920. Its totient is φ = 41718240.

The previous prime is 64078057. The next prime is 64078097. The reversal of 64078071 is 17087046.

It is not a de Polignac number, because 64078071 - 2⁷ = 64077943 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64078031) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27741 + ... + 29961.

It is an arithmetic number, because the mean of its divisors is an integer number (5466120).

Almost surely, 2^64078071 is an apocalyptic number.

64078071 is a deficient number, since it is larger than the sum of its proper divisors (23379849).

64078071 is a wasteful number, since it uses less digits than its factorization.

64078071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2446.

The product of its (nonzero) digits is 9408, while the sum is 33.

The square root of 64078071 is about 8004.8779503500. The cubic root of 64078071 is about 400.1625818256.

Subtracting from 64078071 its reverse (17087046), we obtain a square (46991025 = 6855²).

The spelling of 64078071 in words is "sixty-four million, seventy-eight thousand, seventy-one".