64527907 has 4 divisors (see below), whose sum is σ = 66028600. Its totient is φ = 63027216.

The previous prime is 64527899. The next prime is 64527917. The reversal of 64527907 is 70972546.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 70972546 = 2 ⋅35486273.

It is a cyclic number.

It is not a de Polignac number, because 64527907 - 2³ = 64527899 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 64527907.

It is not an unprimeable number, because it can be changed into a prime (64527917) 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, 750282 + ... + 750367.

It is an arithmetic number, because the mean of its divisors is an integer number (16507150).

Almost surely, 2^64527907 is an apocalyptic number.

64527907 is a deficient number, since it is larger than the sum of its proper divisors (1500693).

64527907 is a wasteful number, since it uses less digits than its factorization.

64527907 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1500692.

The product of its (nonzero) digits is 105840, while the sum is 40.

The square root of 64527907 is about 8032.9264281456. The cubic root of 64527907 is about 401.0967960970.

The spelling of 64527907 in words is "sixty-four million, five hundred twenty-seven thousand, nine hundred seven".