71652215 has 16 divisors (see below), whose sum is σ = 88585056. Its totient is φ = 55603200.

The previous prime is 71652197. The next prime is 71652221. The reversal of 71652215 is 51225617.

It is not a de Polignac number, because 71652215 - 2⁶ = 71652151 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 15 ways as a sum of consecutive naturals, for example, 38660 + ... + 40470.

It is an arithmetic number, because the mean of its divisors is an integer number (5536566).

Almost surely, 2^71652215 is an apocalyptic number.

71652215 is a deficient number, since it is larger than the sum of its proper divisors (16932841).

71652215 is a wasteful number, since it uses less digits than its factorization.

71652215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2050.

The product of its digits is 4200, while the sum is 29.

The square root of 71652215 is about 8464.7631390370. The cubic root of 71652215 is about 415.3458480536.

The spelling of 71652215 in words is "seventy-one million, six hundred fifty-two thousand, two hundred fifteen".