65036649 has 8 divisors (see below), whose sum is σ = 87903712. Its totient is φ = 42763680.

The previous prime is 65036641. The next prime is 65036651. The reversal of 65036649 is 94663056.

It is a happy number.

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

It is not a de Polignac number, because 65036649 - 2³ = 65036641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65036641) 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, 148267 + ... + 148704.

It is an arithmetic number, because the mean of its divisors is an integer number (10987964).

Almost surely, 2^65036649 is an apocalyptic number.

It is an amenable number.

65036649 is a deficient number, since it is larger than the sum of its proper divisors (22867063).

65036649 is a wasteful number, since it uses less digits than its factorization.

65036649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 297047.

The product of its (nonzero) digits is 116640, while the sum is 39.

The square root of 65036649 is about 8064.5303025037. The cubic root of 65036649 is about 402.1481286243.

The spelling of 65036649 in words is "sixty-five million, thirty-six thousand, six hundred forty-nine".