64898387 has 8 divisors (see below), whose sum is σ = 68649504. Its totient is φ = 61224768.

The previous prime is 64898363. The next prime is 64898429. The reversal of 64898387 is 78389846.

It is a happy number.

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 64898387 - 2⁸ = 64898131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64898087) 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, 17648 + ... + 21005.

It is an arithmetic number, because the mean of its divisors is an integer number (8581188).

Almost surely, 2^64898387 is an apocalyptic number.

64898387 is a deficient number, since it is larger than the sum of its proper divisors (3751117).

64898387 is a wasteful number, since it uses less digits than its factorization.

64898387 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38749.

The product of its digits is 2322432, while the sum is 53.

The square root of 64898387 is about 8055.9535127755. The cubic root of 64898387 is about 401.8629496599.

The spelling of 64898387 in words is "sixty-four million, eight hundred ninety-eight thousand, three hundred eighty-seven".