64711047 has 8 divisors (see below), whose sum is σ = 86385280. Its totient is φ = 43088760.

The previous prime is 64711037. The next prime is 64711067. The reversal of 64711047 is 74011746.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 64711047 - 2⁸ = 64710791 is a prime.

It is a super-3 number, since 3×64711047³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64711037) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9979 + ... + 15132.

It is an arithmetic number, because the mean of its divisors is an integer number (10798160).

Almost surely, 2^64711047 is an apocalyptic number.

64711047 is a deficient number, since it is larger than the sum of its proper divisors (21674233).

64711047 is a wasteful number, since it uses less digits than its factorization.

64711047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25973.

The product of its (nonzero) digits is 4704, while the sum is 30.

The square root of 64711047 is about 8044.3176839307. The cubic root of 64711047 is about 401.4758955498.

It can be divided in two parts, 6 and 4711047, that multiplied together give a palindrome (28266282).

The spelling of 64711047 in words is "sixty-four million, seven hundred eleven thousand, forty-seven".