72466403 has 2 divisors, whose sum is σ = 72466404. Its totient is φ = 72466402.

The previous prime is 72466397. The next prime is 72466451. The reversal of 72466403 is 30466427.

It is a weak prime.

It is an emirp because it is prime and its reverse (30466427) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-72466403 is a prime.

It is equal to p_4254575 and since 72466403 and 4254575 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 72466403.

It is not a weakly prime, because it can be changed into another prime (72466453) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36233201 + 36233202.

It is an arithmetic number, because the mean of its divisors is an integer number (36233202).

Almost surely, 2^72466403 is an apocalyptic number.

72466403 is a deficient number, since it is larger than the sum of its proper divisors (1).

72466403 is an equidigital number, since it uses as much as digits as its factorization.

72466403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24192, while the sum is 32.

The square root of 72466403 is about 8512.7200705767. The cubic root of 72466403 is about 416.9131257281.

The spelling of 72466403 in words is "seventy-two million, four hundred sixty-six thousand, four hundred three".