73872127 has 4 divisors (see below), whose sum is σ = 84425296. Its totient is φ = 63318960.

The previous prime is 73872103. The next prime is 73872137. The reversal of 73872127 is 72127837.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-73872127 is a prime.

It is a super-2 number, since 2×73872127² = 10914182295008258, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (73872137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5276574 + ... + 5276587.

It is an arithmetic number, because the mean of its divisors is an integer number (21106324).

Almost surely, 2^73872127 is an apocalyptic number.

73872127 is a deficient number, since it is larger than the sum of its proper divisors (10553169).

73872127 is a wasteful number, since it uses less digits than its factorization.

73872127 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10553168.

The product of its digits is 32928, while the sum is 37.

The square root of 73872127 is about 8594.8895862600. The cubic root of 73872127 is about 419.5916798832.

The spelling of 73872127 in words is "seventy-three million, eight hundred seventy-two thousand, one hundred twenty-seven".