64089469 has 4 divisors (see below), whose sum is σ = 64688544. Its totient is φ = 63490396.

The previous prime is 64089463. The next prime is 64089491. The reversal of 64089469 is 96498046.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 64089469 - 2¹⁹ = 63565181 is a prime.

It is a super-2 number, since 2×64089469² = 8214920073403922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64089463) 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, 299377 + ... + 299590.

It is an arithmetic number, because the mean of its divisors is an integer number (16172136).

Almost surely, 2^64089469 is an apocalyptic number.

It is an amenable number.

64089469 is a deficient number, since it is larger than the sum of its proper divisors (599075).

64089469 is a wasteful number, since it uses less digits than its factorization.

64089469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 599074.

The product of its (nonzero) digits is 373248, while the sum is 46.

The square root of 64089469 is about 8005.5898595919. The cubic root of 64089469 is about 400.1863069608.

It can be divided in two parts, 640 and 89469, that added together give a palindrome (90109).

The spelling of 64089469 in words is "sixty-four million, eighty-nine thousand, four hundred sixty-nine".