71903097 has 12 divisors (see below), whose sum is σ = 118697280. Its totient is φ = 41087448.

The previous prime is 71903089. The next prime is 71903107. The reversal of 71903097 is 79030917.

It is not a de Polignac number, because 71903097 - 2³ = 71903089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (71903057) 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, 570597 + ... + 570722.

It is an arithmetic number, because the mean of its divisors is an integer number (9891440).

Almost surely, 2^71903097 is an apocalyptic number.

It is an amenable number.

71903097 is a deficient number, since it is larger than the sum of its proper divisors (46794183).

71903097 is a wasteful number, since it uses less digits than its factorization.

71903097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1141332 (or 1141329 counting only the distinct ones).

The product of its (nonzero) digits is 11907, while the sum is 36.

The square root of 71903097 is about 8479.5693876517. The cubic root of 71903097 is about 415.8300452973.

The spelling of 71903097 in words is "seventy-one million, nine hundred three thousand, ninety-seven".