73682857 has 4 divisors (see below), whose sum is σ = 73755220. Its totient is φ = 73610496.

The previous prime is 73682837. The next prime is 73682891. The reversal of 73682857 is 75828637.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 75828637 = 53 ⋅1430729.

It can be written as a sum of positive squares in 2 ways, for example, as 34445161 + 39237696 = 5869^2 + 6264^2 .

It is a cyclic number.

It is not a de Polignac number, because 73682857 - 2¹¹ = 73680809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73682837) 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 3 ways as a sum of consecutive naturals, for example, 34632 + ... + 36697.

It is an arithmetic number, because the mean of its divisors is an integer number (18438805).

Almost surely, 2^73682857 is an apocalyptic number.

It is an amenable number.

73682857 is a deficient number, since it is larger than the sum of its proper divisors (72363).

73682857 is a wasteful number, since it uses less digits than its factorization.

73682857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72362.

The product of its digits is 564480, while the sum is 46.

The square root of 73682857 is about 8583.8719119055. The cubic root of 73682857 is about 419.2330239101.

The spelling of 73682857 in words is "seventy-three million, six hundred eighty-two thousand, eight hundred fifty-seven".