72406075 has 18 divisors (see below), whose sum is σ = 104443836. Its totient is φ = 49649040.

The previous prime is 72406063. The next prime is 72406079. The reversal of 72406075 is 57060427.

It is not a de Polignac number, because 72406075 - 2⁹ = 72405563 is a prime.

It is not an unprimeable number, because it can be changed into a prime (72406079) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 28329 + ... + 30778.

Almost surely, 2^72406075 is an apocalyptic number.

72406075 is a deficient number, since it is larger than the sum of its proper divisors (32037761).

72406075 is a wasteful number, since it uses less digits than its factorization.

72406075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59131 (or 59119 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 31.

The square root of 72406075 is about 8509.1759295481. The cubic root of 72406075 is about 416.7974007541.

The spelling of 72406075 in words is "seventy-two million, four hundred six thousand, seventy-five".