64090469 has 4 divisors (see below), whose sum is σ = 65454144. Its totient is φ = 62726796.

The previous prime is 64090457. The next prime is 64090483. The reversal of 64090469 is 96409046.

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 a de Polignac number, because none of the positive numbers 2^k-64090469 is a prime.

It is a super-2 number, since 2×64090469² = 8215176433279922, 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 (64090669) 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, 681767 + ... + 681860.

It is an arithmetic number, because the mean of its divisors is an integer number (16363536).

Almost surely, 2^64090469 is an apocalyptic number.

It is an amenable number.

64090469 is a deficient number, since it is larger than the sum of its proper divisors (1363675).

64090469 is a wasteful number, since it uses less digits than its factorization.

64090469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1363674.

The product of its (nonzero) digits is 46656, while the sum is 38.

The square root of 64090469 is about 8005.6523157079. The cubic root of 64090469 is about 400.1883883440.

The spelling of 64090469 in words is "sixty-four million, ninety thousand, four hundred sixty-nine".