71073999 has 12 divisors (see below), whose sum is σ = 102764376. Its totient is φ = 47335632.

The previous prime is 71073997. The next prime is 71074013. The reversal of 71073999 is 99937017.

It is not a de Polignac number, because 71073999 - 2¹ = 71073997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71073997) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7357 + ... + 14009.

It is an arithmetic number, because the mean of its divisors is an integer number (8563698).

Almost surely, 2^71073999 is an apocalyptic number.

71073999 is a deficient number, since it is larger than the sum of its proper divisors (31690377).

71073999 is a wasteful number, since it uses less digits than its factorization.

71073999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7846 (or 7843 counting only the distinct ones).

The product of its (nonzero) digits is 107163, while the sum is 45.

The square root of 71073999 is about 8430.5396624415. The cubic root of 71073999 is about 414.2255824452.

The spelling of 71073999 in words is "seventy-one million, seventy-three thousand, nine hundred ninety-nine".