73986403 has 2 divisors, whose sum is σ = 73986404. Its totient is φ = 73986402.

The previous prime is 73986401. The next prime is 73986443. The reversal of 73986403 is 30468937.

It is an a-pointer prime, because the next prime (73986443) can be obtained adding 73986403 to its sum of digits (40).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 73986403 - 2¹ = 73986401 is a prime.

Together with 73986401, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (73986401) 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 as a sum of consecutive naturals, namely, 36993201 + 36993202.

It is an arithmetic number, because the mean of its divisors is an integer number (36993202).

Almost surely, 2^73986403 is an apocalyptic number.

73986403 is a deficient number, since it is larger than the sum of its proper divisors (1).

73986403 is an equidigital number, since it uses as much as digits as its factorization.

73986403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108864, while the sum is 40.

The square root of 73986403 is about 8601.5349211638. The cubic root of 73986403 is about 419.8079299406.

The spelling of 73986403 in words is "seventy-three million, nine hundred eighty-six thousand, four hundred three".