64363967 has 16 divisors (see below), whose sum is σ = 68400384. Its totient is φ = 60480000.

The previous prime is 64363961. The next prime is 64363969. The reversal of 64363967 is 76936346.

It is a cyclic number.

It is not a de Polignac number, because 64363967 - 2⁴ = 64363951 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64363961) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 190823 + ... + 191159.

It is an arithmetic number, because the mean of its divisors is an integer number (4275024).

Almost surely, 2^64363967 is an apocalyptic number.

64363967 is a deficient number, since it is larger than the sum of its proper divisors (4036417).

64363967 is a wasteful number, since it uses less digits than its factorization.

64363967 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 530.

The product of its digits is 489888, while the sum is 44.

The square root of 64363967 is about 8022.7156873468. The cubic root of 64363967 is about 400.7568316947.

The spelling of 64363967 in words is "sixty-four million, three hundred sixty-three thousand, nine hundred sixty-seven".