64267361 has 4 divisors (see below), whose sum is σ = 68047812. Its totient is φ = 60486912.

The previous prime is 64267331. The next prime is 64267387. The reversal of 64267361 is 16376246.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 59290000 + 4977361 = 7700^2 + 2231^2 .

It is a cyclic number.

It is not a de Polignac number, because 64267361 - 2⁶ = 64267297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64267321) 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, 1890200 + ... + 1890233.

It is an arithmetic number, because the mean of its divisors is an integer number (17011953).

Almost surely, 2^64267361 is an apocalyptic number.

It is an amenable number.

64267361 is a deficient number, since it is larger than the sum of its proper divisors (3780451).

64267361 is a wasteful number, since it uses less digits than its factorization.

64267361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3780450.

The product of its digits is 36288, while the sum is 35.

The square root of 64267361 is about 8016.6926472205. The cubic root of 64267361 is about 400.5562282501.

The spelling of 64267361 in words is "sixty-four million, two hundred sixty-seven thousand, three hundred sixty-one".