71952605 has 8 divisors (see below), whose sum is σ = 88676952. Its totient is φ = 56006208.

The previous prime is 71952589. The next prime is 71952659. The reversal of 71952605 is 50625917.

It can be written as a sum of positive squares in 4 ways, for example, as 26646244 + 45306361 = 5162^2 + 6731^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 71952605 - 2⁴ = 71952589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 194282 + ... + 194651.

It is an arithmetic number, because the mean of its divisors is an integer number (11084619).

Almost surely, 2^71952605 is an apocalyptic number.

It is an amenable number.

71952605 is a deficient number, since it is larger than the sum of its proper divisors (16724347).

71952605 is a wasteful number, since it uses less digits than its factorization.

71952605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 388975.

The product of its (nonzero) digits is 18900, while the sum is 35.

The square root of 71952605 is about 8482.4881373333. The cubic root of 71952605 is about 415.9254616359.

The spelling of 71952605 in words is "seventy-one million, nine hundred fifty-two thousand, six hundred five".