72470101 has 16 divisors (see below), whose sum is σ = 82362240. Its totient is φ = 63161280.

The previous prime is 72470089. The next prime is 72470107. The reversal of 72470101 is 10107427.

It is a cyclic number.

It is not a de Polignac number, because 72470101 - 2⁷ = 72469973 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72470107) 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 15 ways as a sum of consecutive naturals, for example, 49360 + ... + 50806.

It is an arithmetic number, because the mean of its divisors is an integer number (5147640).

Almost surely, 2^72470101 is an apocalyptic number.

It is an amenable number.

72470101 is a deficient number, since it is larger than the sum of its proper divisors (9892139).

72470101 is a wasteful number, since it uses less digits than its factorization.

72470101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1644.

The product of its (nonzero) digits is 392, while the sum is 22.

The square root of 72470101 is about 8512.9372721758. The cubic root of 72470101 is about 416.9202173754.

Adding to 72470101 its reverse (10107427), we get a palindrome (82577528).

The spelling of 72470101 in words is "seventy-two million, four hundred seventy thousand, one hundred one".