72270601 has 8 divisors (see below), whose sum is σ = 77905800. Its totient is φ = 66646272.

The previous prime is 72270599. The next prime is 72270613. The reversal of 72270601 is 10607227.

It can be written as a sum of positive squares in 4 ways, for example, as 11055625 + 61214976 = 3325^2 + 7824^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 72270601 - 2¹ = 72270599 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72270691) 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 7 ways as a sum of consecutive naturals, for example, 15825 + ... + 19873.

It is an arithmetic number, because the mean of its divisors is an integer number (9738225).

Almost surely, 2^72270601 is an apocalyptic number.

It is an amenable number.

72270601 is a deficient number, since it is larger than the sum of its proper divisors (5635199).

72270601 is a wasteful number, since it uses less digits than its factorization.

72270601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5435.

The product of its (nonzero) digits is 1176, while the sum is 25.

The square root of 72270601 is about 8501.2117371584. The cubic root of 72270601 is about 416.5372915309.

Adding to 72270601 its reverse (10607227), we get a palindrome (82877828).

The spelling of 72270601 in words is "seventy-two million, two hundred seventy thousand, six hundred one".