73826649 has 12 divisors (see below), whose sum is σ = 114841636. Its totient is φ = 45431712.

The previous prime is 73826639. The next prime is 73826659. The reversal of 73826649 is 94662837.

It is an interprime number because it is at equal distance from previous prime (73826639) and next prime (73826659).

It can be written as a sum of positive squares in 2 ways, for example, as 7290000 + 66536649 = 2700^2 + 8157^2 .

It is not a de Polignac number, because 73826649 - 2⁵ = 73826617 is a prime.

It is not an unprimeable number, because it can be changed into a prime (73826639) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 315382 + ... + 315615.

Almost surely, 2^73826649 is an apocalyptic number.

It is an amenable number.

73826649 is a deficient number, since it is larger than the sum of its proper divisors (41014987).

73826649 is a wasteful number, since it uses less digits than its factorization.

73826649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 631016 (or 631013 counting only the distinct ones).

The product of its digits is 435456, while the sum is 45.

The square root of 73826649 is about 8592.2435370513. The cubic root of 73826649 is about 419.5055576050.

The spelling of 73826649 in words is "seventy-three million, eight hundred twenty-six thousand, six hundred forty-nine".