64067369 has 4 divisors (see below), whose sum is σ = 64227540. Its totient is φ = 63907200.

The previous prime is 64067317. The next prime is 64067383. The reversal of 64067369 is 96376046.

It is a happy number.

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 58369600 + 5697769 = 7640^2 + 2387^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64067369 is a prime.

It is a super-2 number, since 2×64067369² = 8209255541164322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64063369) 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, 79484 + ... + 80285.

It is an arithmetic number, because the mean of its divisors is an integer number (16056885).

Almost surely, 2^64067369 is an apocalyptic number.

It is an amenable number.

64067369 is a deficient number, since it is larger than the sum of its proper divisors (160171).

64067369 is a wasteful number, since it uses less digits than its factorization.

64067369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160170.

The product of its (nonzero) digits is 163296, while the sum is 41.

The square root of 64067369 is about 8004.2094550305. The cubic root of 64067369 is about 400.1403028653.

The spelling of 64067369 in words is "sixty-four million, sixty-seven thousand, three hundred sixty-nine".