72844401 has 8 divisors (see below), whose sum is σ = 111001024. Its totient is φ = 41625360.

The previous prime is 72844391. The next prime is 72844411. The reversal of 72844401 is 10444827.

It is an interprime number because it is at equal distance from previous prime (72844391) and next prime (72844411).

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

It is not a de Polignac number, because 72844401 - 2¹¹ = 72842353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72844411) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1734370 + ... + 1734411.

It is an arithmetic number, because the mean of its divisors is an integer number (13875128).

Almost surely, 2^72844401 is an apocalyptic number.

It is an amenable number.

72844401 is a deficient number, since it is larger than the sum of its proper divisors (38156623).

72844401 is a wasteful number, since it uses less digits than its factorization.

72844401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3468791.

The product of its (nonzero) digits is 7168, while the sum is 30.

The square root of 72844401 is about 8534.8931452011. The cubic root of 72844401 is about 417.6367673163.

The spelling of 72844401 in words is "seventy-two million, eight hundred forty-four thousand, four hundred one".