72871445 has 8 divisors (see below), whose sum is σ = 88075680. Its totient is φ = 57877200.

The previous prime is 72871439. The next prime is 72871451. The reversal of 72871445 is 54417827.

It is an interprime number because it is at equal distance from previous prime (72871439) and next prime (72871451).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 72871445 - 2⁸ = 72871189 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 72871399 and 72871408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51731 + ... + 53120.

It is an arithmetic number, because the mean of its divisors is an integer number (11009460).

Almost surely, 2^72871445 is an apocalyptic number.

It is an amenable number.

72871445 is a deficient number, since it is larger than the sum of its proper divisors (15204235).

72871445 is a wasteful number, since it uses less digits than its factorization.

72871445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104995.

The product of its digits is 62720, while the sum is 38.

The square root of 72871445 is about 8536.4773179573. The cubic root of 72871445 is about 417.6884444579.

The spelling of 72871445 in words is "seventy-two million, eight hundred seventy-one thousand, four hundred forty-five".