72484403 has 2 divisors, whose sum is σ = 72484404. Its totient is φ = 72484402.

The previous prime is 72484393. The next prime is 72484429. The reversal of 72484403 is 30448427.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 72484403 - 2¹⁸ = 72222259 is a prime.

It is equal to p_4255565 and since 72484403 and 4255565 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 72484403.

It is not a weakly prime, because it can be changed into another prime (72484463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36242201 + 36242202.

It is an arithmetic number, because the mean of its divisors is an integer number (36242202).

Almost surely, 2^72484403 is an apocalyptic number.

72484403 is a deficient number, since it is larger than the sum of its proper divisors (1).

72484403 is an equidigital number, since it uses as much as digits as its factorization.

72484403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21504, while the sum is 32.

The square root of 72484403 is about 8513.7772463226. Note that the first 3 decimals coincide. The cubic root of 72484403 is about 416.9476420220.

The spelling of 72484403 in words is "seventy-two million, four hundred eighty-four thousand, four hundred three".