64838487 has 8 divisors (see below), whose sum is σ = 98801536. Its totient is φ = 37050552.

The previous prime is 64838479. The next prime is 64838491. The reversal of 64838487 is 78483846.

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

It is not a de Polignac number, because 64838487 - 2³ = 64838479 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 (64838447) 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, 1543753 + ... + 1543794.

It is an arithmetic number, because the mean of its divisors is an integer number (12350192).

Almost surely, 2^64838487 is an apocalyptic number.

64838487 is a deficient number, since it is larger than the sum of its proper divisors (33963049).

64838487 is a wasteful number, since it uses less digits than its factorization.

64838487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3087557.

The product of its digits is 1032192, while the sum is 48.

The square root of 64838487 is about 8052.2349071547. The cubic root of 64838487 is about 401.7392742679.

The spelling of 64838487 in words is "sixty-four million, eight hundred thirty-eight thousand, four hundred eighty-seven".