64011247 has 8 divisors (see below), whose sum is σ = 67647600. Its totient is φ = 60401664.

The previous prime is 64011217. The next prime is 64011271. The reversal of 64011247 is 74211046.

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 64011247 - 2⁷ = 64011119 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64011217) 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, 1672 + ... + 11437.

It is an arithmetic number, because the mean of its divisors is an integer number (8455950).

Almost surely, 2^64011247 is an apocalyptic number.

64011247 is a deficient number, since it is larger than the sum of its proper divisors (3636353).

64011247 is a wasteful number, since it uses less digits than its factorization.

64011247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13385.

The product of its (nonzero) digits is 1344, while the sum is 25.

The square root of 64011247 is about 8000.7029066201. The cubic root of 64011247 is about 400.0234298776.

The spelling of 64011247 in words is "sixty-four million, eleven thousand, two hundred forty-seven".