207082649 has 8 divisors (see below), whose sum is σ = 214529160. Its totient is φ = 199656576.

The previous prime is 207082637. The next prime is 207082663. The reversal of 207082649 is 946280702.

It can be written as a sum of positive squares in 4 ways, for example, as 59290000 + 147792649 = 7700^2 + 12157^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-207082649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (207082609) 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, 17237 + ... + 26669.

It is an arithmetic number, because the mean of its divisors is an integer number (26816145).

Almost surely, 2^207082649 is an apocalyptic number.

207082649 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

207082649 is a deficient number, since it is larger than the sum of its proper divisors (7446511).

207082649 is an equidigital number, since it uses as much as digits as its factorization.

207082649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10219.

The product of its (nonzero) digits is 48384, while the sum is 38.

The square root of 207082649 is about 14390.3665345953. The cubic root of 207082649 is about 591.6268887450.

The spelling of 207082649 in words is "two hundred seven million, eighty-two thousand, six hundred forty-nine".