73973857 has 4 divisors (see below), whose sum is σ = 74324656. Its totient is φ = 73623060.

The previous prime is 73973827. The next prime is 73973869. The reversal of 73973857 is 75837937.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-73973857 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 73973857.

It is not an unprimeable number, because it can be changed into a prime (73973827) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 175083 + ... + 175504.

It is an arithmetic number, because the mean of its divisors is an integer number (18581164).

Almost surely, 2^73973857 is an apocalyptic number.

It is an amenable number.

73973857 is a deficient number, since it is larger than the sum of its proper divisors (350799).

73973857 is a wasteful number, since it uses less digits than its factorization.

73973857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 350798.

The product of its digits is 1111320, while the sum is 49.

The square root of 73973857 is about 8600.8056018027. The cubic root of 73973857 is about 419.7841994180.

The spelling of 73973857 in words is "seventy-three million, nine hundred seventy-three thousand, eight hundred fifty-seven".