64269479 has 4 divisors (see below), whose sum is σ = 66342720. Its totient is φ = 62196240.

The previous prime is 64269437. The next prime is 64269487. The reversal of 64269479 is 97496246.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 97496246 = 2 ⋅48748123.

It is a cyclic number.

It is not a de Polignac number, because 64269479 - 2⁸ = 64269223 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64269379) 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, 1036574 + ... + 1036635.

It is an arithmetic number, because the mean of its divisors is an integer number (16585680).

Almost surely, 2^64269479 is an apocalyptic number.

64269479 is a deficient number, since it is larger than the sum of its proper divisors (2073241).

64269479 is a wasteful number, since it uses less digits than its factorization.

64269479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2073240.

The product of its digits is 653184, while the sum is 47.

The square root of 64269479 is about 8016.8247454962. The cubic root of 64269479 is about 400.5606284556.

The spelling of 64269479 in words is "sixty-four million, two hundred sixty-nine thousand, four hundred seventy-nine".