73738557 has 6 divisors (see below), whose sum is σ = 106511262. Its totient is φ = 49159032.

The previous prime is 73738543. The next prime is 73738573. The reversal of 73738557 is 75583737.

It can be written as a sum of positive squares in only one way, i.e., 67716441 + 6022116 = 8229^2 + 2454^2 .

It is not a de Polignac number, because 73738557 - 2¹⁰ = 73737533 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73738517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4096578 + ... + 4096595.

It is an arithmetic number, because the mean of its divisors is an integer number (17751877).

Almost surely, 2^73738557 is an apocalyptic number.

It is an amenable number.

73738557 is a deficient number, since it is larger than the sum of its proper divisors (32772705).

73738557 is a wasteful number, since it uses less digits than its factorization.

73738557 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8193179 (or 8193176 counting only the distinct ones).

The product of its digits is 617400, while the sum is 45.

The square root of 73738557 is about 8587.1157555957. The cubic root of 73738557 is about 419.3386359832.

The spelling of 73738557 in words is "seventy-three million, seven hundred thirty-eight thousand, five hundred fifty-seven".