64450897 has 8 divisors (see below), whose sum is σ = 74667776. Its totient is φ = 54486432.

The previous prime is 64450873. The next prime is 64450901. The reversal of 64450897 is 79805446.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 64450897 - 2¹¹ = 64448849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64450097) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62553 + ... + 63574.

It is an arithmetic number, because the mean of its divisors is an integer number (9333472).

Almost surely, 2^64450897 is an apocalyptic number.

It is an amenable number.

64450897 is a deficient number, since it is larger than the sum of its proper divisors (10216879).

64450897 is a wasteful number, since it uses less digits than its factorization.

64450897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126207.

The product of its (nonzero) digits is 241920, while the sum is 43.

The square root of 64450897 is about 8028.1316008147. The cubic root of 64450897 is about 400.9371713100.

The spelling of 64450897 in words is "sixty-four million, four hundred fifty thousand, eight hundred ninety-seven".