64546071 has 4 divisors (see below), whose sum is σ = 86061432. Its totient is φ = 43030712.

The previous prime is 64546067. The next prime is 64546091. The reversal of 64546071 is 17064546.

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 64546071 - 2² = 64546067 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64546051) 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, 10757676 + ... + 10757681.

It is an arithmetic number, because the mean of its divisors is an integer number (21515358).

Almost surely, 2^64546071 is an apocalyptic number.

64546071 is a deficient number, since it is larger than the sum of its proper divisors (21515361).

64546071 is a wasteful number, since it uses less digits than its factorization.

64546071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21515360.

The product of its (nonzero) digits is 20160, while the sum is 33.

The square root of 64546071 is about 8034.0569452799. The cubic root of 64546071 is about 401.1344275604.

The spelling of 64546071 in words is "sixty-four million, five hundred forty-six thousand, seventy-one".