71993425 has 24 divisors (see below), whose sum is σ = 104207616. Its totient is φ = 48311040.

The previous prime is 71993423. The next prime is 71993477. The reversal of 71993425 is 52439917.

It is not a de Polignac number, because 71993425 - 2¹ = 71993423 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (71993423) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3849 + ... + 12601.

It is an arithmetic number, because the mean of its divisors is an integer number (4341984).

Almost surely, 2^71993425 is an apocalyptic number.

It is an amenable number.

71993425 is a deficient number, since it is larger than the sum of its proper divisors (32214191).

71993425 is a wasteful number, since it uses less digits than its factorization.

71993425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8817 (or 8812 counting only the distinct ones).

The product of its digits is 68040, while the sum is 40.

The square root of 71993425 is about 8484.8939298025. The cubic root of 71993425 is about 416.0041007516.

The spelling of 71993425 in words is "seventy-one million, nine hundred ninety-three thousand, four hundred twenty-five".