64546685 has 16 divisors (see below), whose sum is σ = 90915456. Its totient is φ = 43063488.

The previous prime is 64546631. The next prime is 64546697. The reversal of 64546685 is 58664546.

It is a cyclic number.

It is not a de Polignac number, because 64546685 - 2¹⁸ = 64284541 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23627 + ... + 26216.

It is an arithmetic number, because the mean of its divisors is an integer number (5682216).

Almost surely, 2^64546685 is an apocalyptic number.

It is an amenable number.

64546685 is a deficient number, since it is larger than the sum of its proper divisors (26368771).

64546685 is a wasteful number, since it uses less digits than its factorization.

64546685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49892.

The product of its digits is 691200, while the sum is 44.

The square root of 64546685 is about 8034.0951575146. The cubic root of 64546685 is about 401.1356994982.

The spelling of 64546685 in words is "sixty-four million, five hundred forty-six thousand, six hundred eighty-five".