72480001 has 4 divisors (see below), whose sum is σ = 79069104. Its totient is φ = 65890900.

The previous prime is 72479989. The next prime is 72480029. The reversal of 72480001 is 10008427.

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.

It is a cyclic number.

It is not a de Polignac number, because 72480001 - 2⁷ = 72479873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72480091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3294535 + ... + 3294556.

It is an arithmetic number, because the mean of its divisors is an integer number (19767276).

Almost surely, 2^72480001 is an apocalyptic number.

It is an amenable number.

72480001 is a deficient number, since it is larger than the sum of its proper divisors (6589103).

72480001 is a wasteful number, since it uses less digits than its factorization.

72480001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6589102.

The product of its (nonzero) digits is 448, while the sum is 22.

The square root of 72480001 is about 8513.5187202472. The cubic root of 72480001 is about 416.9392013985.

Adding to 72480001 its reverse (10008427), we get a palindrome (82488428).

The spelling of 72480001 in words is "seventy-two million, four hundred eighty thousand, one".