71999793 has 8 divisors (see below), whose sum is σ = 106666400. Its totient is φ = 47999844.

The previous prime is 71999783. The next prime is 71999803. The reversal of 71999793 is 39799917.

It is an interprime number because it is at equal distance from previous prime (71999783) and next prime (71999803).

It is not a de Polignac number, because 71999793 - 2⁸ = 71999537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71999783) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1333303 + ... + 1333356.

It is an arithmetic number, because the mean of its divisors is an integer number (13333300).

Almost surely, 2^71999793 is an apocalyptic number.

It is an amenable number.

71999793 is a deficient number, since it is larger than the sum of its proper divisors (34666607).

71999793 is a wasteful number, since it uses less digits than its factorization.

71999793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2666668 (or 2666662 counting only the distinct ones).

The product of its digits is 964467, while the sum is 54.

The square root of 71999793 is about 8485.2691766378. The cubic root of 71999793 is about 416.0163659273.

The spelling of 71999793 in words is "seventy-one million, nine hundred ninety-nine thousand, seven hundred ninety-three".