73861903 has 2 divisors, whose sum is σ = 73861904. Its totient is φ = 73861902.

The previous prime is 73861897. The next prime is 73861961. The reversal of 73861903 is 30916837.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 73861903 - 2²¹ = 71764751 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (73861973) 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, 36930951 + 36930952.

It is an arithmetic number, because the mean of its divisors is an integer number (36930952).

Almost surely, 2^73861903 is an apocalyptic number.

73861903 is a deficient number, since it is larger than the sum of its proper divisors (1).

73861903 is an equidigital number, since it uses as much as digits as its factorization.

73861903 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27216, while the sum is 37.

The square root of 73861903 is about 8594.2947936407. The cubic root of 73861903 is about 419.5723216424.

The spelling of 73861903 in words is "seventy-three million, eight hundred sixty-one thousand, nine hundred three".