71903725 has 12 divisors (see below), whose sum is σ = 92037760. Its totient is φ = 55666800.

The previous prime is 71903707. The next prime is 71903729. The reversal of 71903725 is 52730917.

It is not a de Polignac number, because 71903725 - 2⁷ = 71903597 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71903729) 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 in 11 ways as a sum of consecutive naturals, for example, 45615 + ... + 47164.

Almost surely, 2^71903725 is an apocalyptic number.

It is an amenable number.

71903725 is a deficient number, since it is larger than the sum of its proper divisors (20134035).

71903725 is a wasteful number, since it uses less digits than its factorization.

71903725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92820 (or 92815 counting only the distinct ones).

The product of its (nonzero) digits is 13230, while the sum is 34.

The square root of 71903725 is about 8479.6064177531. The cubic root of 71903725 is about 415.8312559105.

The spelling of 71903725 in words is "seventy-one million, nine hundred three thousand, seven hundred twenty-five".