64349836 has 12 divisors (see below), whose sum is σ = 112742728. Its totient is φ = 32137632.

The previous prime is 64349821. The next prime is 64349839. The reversal of 64349836 is 63894346.

It is a hoax number, since the sum of its digits (43) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 64349792 and 64349801.

It is not an unprimeable number, because it can be changed into a prime (64349839) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5241 + ... + 12496.

Almost surely, 2^64349836 is an apocalyptic number.

It is an amenable number.

64349836 is a deficient number, since it is larger than the sum of its proper divisors (48392892).

64349836 is a wasteful number, since it uses less digits than its factorization.

64349836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18648 (or 18646 counting only the distinct ones).

The product of its digits is 373248, while the sum is 43.

The square root of 64349836 is about 8021.8349521790. The cubic root of 64349836 is about 400.7275010534.

The spelling of 64349836 in words is "sixty-four million, three hundred forty-nine thousand, eight hundred thirty-six".