64987514 has 4 divisors (see below), whose sum is σ = 97481274. Its totient is φ = 32493756.

The previous prime is 64987471. The next prime is 64987519. The reversal of 64987514 is 41578946.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 36204289 + 28783225 = 6017^2 + 5365^2 .

It is not an unprimeable number, because it can be changed into a prime (64987519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16246877 + ... + 16246880.

Almost surely, 2^64987514 is an apocalyptic number.

64987514 is a deficient number, since it is larger than the sum of its proper divisors (32493760).

64987514 is a wasteful number, since it uses less digits than its factorization.

64987514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32493759.

The product of its digits is 241920, while the sum is 44.

The square root of 64987514 is about 8061.4833622603. The cubic root of 64987514 is about 402.0468291939.

The spelling of 64987514 in words is "sixty-four million, nine hundred eighty-seven thousand, five hundred fourteen".