64436002 has 4 divisors (see below), whose sum is σ = 96654006. Its totient is φ = 32218000.

The previous prime is 64435957. The next prime is 64436003. The reversal of 64436002 is 20063446.

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., 60668521 + 3767481 = 7789^2 + 1941^2 .

It is not an unprimeable number, because it can be changed into a prime (64436003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16108999 + ... + 16109002.

Almost surely, 2^64436002 is an apocalyptic number.

64436002 is a deficient number, since it is larger than the sum of its proper divisors (32218004).

64436002 is a wasteful number, since it uses less digits than its factorization.

64436002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32218003.

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 64436002 is about 8027.2038718348. The cubic root of 64436002 is about 400.9062825789.

Adding to 64436002 its reverse (20063446), we get a palindrome (84499448).

The spelling of 64436002 in words is "sixty-four million, four hundred thirty-six thousand, two".