72467666 has 8 divisors (see below), whose sum is σ = 108862704. Its totient is φ = 36180100.

The previous prime is 72467663. The next prime is 72467699. The reversal of 72467666 is 66676427.

It is a happy number.

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (72467663) 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, 25160 + ... + 27891.

It is an arithmetic number, because the mean of its divisors is an integer number (13607838).

Almost surely, 2^72467666 is an apocalyptic number.

72467666 is a deficient number, since it is larger than the sum of its proper divisors (36395038).

72467666 is a wasteful number, since it uses less digits than its factorization.

72467666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53736.

The product of its digits is 508032, while the sum is 44.

The square root of 72467666 is about 8512.7942533577. The cubic root of 72467666 is about 416.9155478078.

The spelling of 72467666 in words is "seventy-two million, four hundred sixty-seven thousand, six hundred sixty-six".