64254917 has 8 divisors (see below), whose sum is σ = 68138136. Its totient is φ = 60383232.

The previous prime is 64254889. The next prime is 64254959. The reversal of 64254917 is 71945246.

It can be written as a sum of positive squares in 4 ways, for example, as 16008001 + 48246916 = 4001^2 + 6946^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 64254917 - 2¹² = 64250821 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 (64250917) 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, 10373 + ... + 15365.

It is an arithmetic number, because the mean of its divisors is an integer number (8517267).

Almost surely, 2^64254917 is an apocalyptic number.

It is an amenable number.

64254917 is a deficient number, since it is larger than the sum of its proper divisors (3883219).

64254917 is a wasteful number, since it uses less digits than its factorization.

64254917 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5767.

The product of its digits is 60480, while the sum is 38.

The square root of 64254917 is about 8015.9164791058. The cubic root of 64254917 is about 400.5303735323.

The spelling of 64254917 in words is "sixty-four million, two hundred fifty-four thousand, nine hundred seventeen".