64284071 has 4 divisors (see below), whose sum is σ = 65497032. Its totient is φ = 63071112.

The previous prime is 64284053. The next prime is 64284079. The reversal of 64284071 is 17048246.

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 64284071 - 2¹⁰ = 64283047 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 (64284079) 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, 606401 + ... + 606506.

It is an arithmetic number, because the mean of its divisors is an integer number (16374258).

Almost surely, 2^64284071 is an apocalyptic number.

64284071 is a deficient number, since it is larger than the sum of its proper divisors (1212961).

64284071 is a wasteful number, since it uses less digits than its factorization.

64284071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1212960.

The product of its (nonzero) digits is 10752, while the sum is 32.

The square root of 64284071 is about 8017.7347798490. The cubic root of 64284071 is about 400.5909411249.

The spelling of 64284071 in words is "sixty-four million, two hundred eighty-four thousand, seventy-one".