64764847 has 8 divisors (see below), whose sum is σ = 74078496. Its totient is φ = 55466592.

The previous prime is 64764841. The next prime is 64764881. The reversal of 64764847 is 74846746.

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

It is a cyclic number.

It is not a de Polignac number, because 64764847 - 2³ = 64764839 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 64764797 and 64764806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64764841) 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, 7353 + ... + 13549.

It is an arithmetic number, because the mean of its divisors is an integer number (9259812).

Almost surely, 2^64764847 is an apocalyptic number.

64764847 is a deficient number, since it is larger than the sum of its proper divisors (9313649).

64764847 is a wasteful number, since it uses less digits than its factorization.

64764847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7697.

The product of its digits is 903168, while the sum is 46.

The square root of 64764847 is about 8047.6609645288. The cubic root of 64764847 is about 401.5871255026.

The spelling of 64764847 in words is "sixty-four million, seven hundred sixty-four thousand, eight hundred forty-seven".