36721403 has 2 divisors, whose sum is σ = 36721404. Its totient is φ = 36721402.

The previous prime is 36721393. The next prime is 36721417. The reversal of 36721403 is 30412763.

36721403 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is an emirp because it is prime and its reverse (30412763) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 36721403 - 2¹⁶ = 36655867 is a prime.

It is a super-2 number, since 2×36721403² = 2696922876576818, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (36721483) 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, 18360701 + 18360702.

It is an arithmetic number, because the mean of its divisors is an integer number (18360702).

Almost surely, 2^36721403 is an apocalyptic number.

36721403 is a deficient number, since it is larger than the sum of its proper divisors (1).

36721403 is an equidigital number, since it uses as much as digits as its factorization.

36721403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024, while the sum is 26.

The square root of 36721403 is about 6059.8187266617. The cubic root of 36721403 is about 332.3837285434.

The spelling of 36721403 in words is "thirty-six million, seven hundred twenty-one thousand, four hundred three".