64454577 has 16 divisors (see below), whose sum is σ = 94011840. Its totient is φ = 38955200.

The previous prime is 64454573. The next prime is 64454591. The reversal of 64454577 is 77545446.

It is a cyclic number.

It is not a de Polignac number, because 64454577 - 2² = 64454573 is a prime.

It is not an unprimeable number, because it can be changed into a prime (64454573) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10327 + ... + 15347.

It is an arithmetic number, because the mean of its divisors is an integer number (5875740).

Almost surely, 2^64454577 is an apocalyptic number.

It is an amenable number.

64454577 is a deficient number, since it is larger than the sum of its proper divisors (29557263).

64454577 is a wasteful number, since it uses less digits than its factorization.

64454577 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5424.

The product of its digits is 470400, while the sum is 42.

The square root of 64454577 is about 8028.3607915938. The cubic root of 64454577 is about 400.9448020324.

The spelling of 64454577 in words is "sixty-four million, four hundred fifty-four thousand, five hundred seventy-seven".