73748817 has 12 divisors (see below), whose sum is σ = 108273204. Its totient is φ = 48359520.

The previous prime is 73748797. The next prime is 73748837. The reversal of 73748817 is 71884737.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (73748797) and next prime (73748837).

It can be written as a sum of positive squares in 2 ways, for example, as 20034576 + 53714241 = 4476^2 + 7329^2 .

It is not a de Polignac number, because 73748817 - 2⁸ = 73748561 is a prime.

It is a super-3 number, since 3×73748817³ (a number of 25 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (73748837) 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, 66618 + ... + 67715.

It is an arithmetic number, because the mean of its divisors is an integer number (9022767).

Almost surely, 2^73748817 is an apocalyptic number.

It is an amenable number.

73748817 is a deficient number, since it is larger than the sum of its proper divisors (34524387).

73748817 is a wasteful number, since it uses less digits than its factorization.

73748817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134400 (or 134397 counting only the distinct ones).

The product of its digits is 263424, while the sum is 45.

The square root of 73748817 is about 8587.7131414597. The cubic root of 73748817 is about 419.3580840397.

It can be divided in two parts, 737488 and 17, that added together give a triangular number (737505 = T₁₂₁₄).

The spelling of 73748817 in words is "seventy-three million, seven hundred forty-eight thousand, eight hundred seventeen".