72047001 has 8 divisors (see below), whose sum is σ = 103452160. Its totient is φ = 44336592.

The previous prime is 72046999. The next prime is 72047033. The reversal of 72047001 is 10074027.

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

It is not a de Polignac number, because 72047001 - 2¹ = 72046999 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72047051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 923641 + ... + 923718.

It is an arithmetic number, because the mean of its divisors is an integer number (12931520).

Almost surely, 2^72047001 is an apocalyptic number.

It is an amenable number.

72047001 is a deficient number, since it is larger than the sum of its proper divisors (31405159).

72047001 is a wasteful number, since it uses less digits than its factorization.

72047001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1847375.

The product of its (nonzero) digits is 392, while the sum is 21.

The square root of 72047001 is about 8488.0504828847. The cubic root of 72047001 is about 416.1072690121.

The spelling of 72047001 in words is "seventy-two million, forty-seven thousand, one".