73922857 has 4 divisors (see below), whose sum is σ = 74964096. Its totient is φ = 72881620.

The previous prime is 73922843. The next prime is 73922873. The reversal of 73922857 is 75822937.

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, and also an emirpimes, since its reverse is a distinct semiprime: 75822937 = 127 ⋅597031.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-73922857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (73922357) 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, 520513 + ... + 520654.

It is an arithmetic number, because the mean of its divisors is an integer number (18741024).

Almost surely, 2^73922857 is an apocalyptic number.

It is an amenable number.

73922857 is a deficient number, since it is larger than the sum of its proper divisors (1041239).

73922857 is a wasteful number, since it uses less digits than its factorization.

73922857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1041238.

The product of its digits is 211680, while the sum is 43.

The square root of 73922857 is about 8597.8402520633. The cubic root of 73922857 is about 419.6877062471.

The spelling of 73922857 in words is "seventy-three million, nine hundred twenty-two thousand, eight hundred fifty-seven".