71993295 has 24 divisors (see below), whose sum is σ = 136133712. Its totient is φ = 34905600.

The previous prime is 71993269. The next prime is 71993329. The reversal of 71993295 is 59239917.

It is a happy number.

It is not a de Polignac number, because 71993295 - 2¹³ = 71985103 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 71993295.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 72226 + ... + 73215.

It is an arithmetic number, because the mean of its divisors is an integer number (5672238).

Almost surely, 2^71993295 is an apocalyptic number.

71993295 is a deficient number, since it is larger than the sum of its proper divisors (64140417).

71993295 is a wasteful number, since it uses less digits than its factorization.

71993295 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145463 (or 145460 counting only the distinct ones).

The product of its digits is 153090, while the sum is 45.

The square root of 71993295 is about 8484.8862691258. The cubic root of 71993295 is about 416.0038503558.

It can be divided in two parts, 719932 and 95, that added together give a palindrome (720027).

The spelling of 71993295 in words is "seventy-one million, nine hundred ninety-three thousand, two hundred ninety-five".