64989002 has 8 divisors (see below), whose sum is σ = 104982276. Its totient is φ = 29994912.

The previous prime is 64988999. The next prime is 64989013. The reversal of 64989002 is 20098946.

It can be written as a sum of positive squares in 2 ways, for example, as 62552281 + 2436721 = 7909^2 + 1561^2 .

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

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 1249763 + ... + 1249814.

Almost surely, 2^64989002 is an apocalyptic number.

64989002 is a deficient number, since it is larger than the sum of its proper divisors (39993274).

64989002 is a wasteful number, since it uses less digits than its factorization.

64989002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2499592.

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 64989002 is about 8061.5756524392. The cubic root of 64989002 is about 402.0498976865.

The spelling of 64989002 in words is "sixty-four million, nine hundred eighty-nine thousand, two".