65246749 has 4 divisors (see below), whose sum is σ = 65349180. Its totient is φ = 65144320.

The previous prime is 65246719. The next prime is 65246767. The reversal of 65246749 is 94764256.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 45131524 + 20115225 = 6718^2 + 4485^2 .

It is a cyclic number.

It is not a de Polignac number, because 65246749 - 2⁵ = 65246717 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65246719) 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, 50254 + ... + 51535.

It is an arithmetic number, because the mean of its divisors is an integer number (16337295).

Almost surely, 2^65246749 is an apocalyptic number.

It is an amenable number.

65246749 is a deficient number, since it is larger than the sum of its proper divisors (102431).

65246749 is a wasteful number, since it uses less digits than its factorization.

65246749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102430.

The product of its digits is 362880, while the sum is 43.

The square root of 65246749 is about 8077.5459763470. The cubic root of 65246749 is about 402.5807078104.

The spelling of 65246749 in words is "sixty-five million, two hundred forty-six thousand, seven hundred forty-nine".