71969315 has 16 divisors (see below), whose sum is σ = 96408576. Its totient is φ = 51122400.

The previous prime is 71969311. The next prime is 71969333. The reversal of 71969315 is 51396917.

It is not a de Polignac number, because 71969315 - 2² = 71969311 is a prime.

It is not an unprimeable number, because it can be changed into a prime (71969311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12851 + ... + 17580.

It is an arithmetic number, because the mean of its divisors is an integer number (6025536).

Almost surely, 2^71969315 is an apocalyptic number.

71969315 is a deficient number, since it is larger than the sum of its proper divisors (24439261).

71969315 is a wasteful number, since it uses less digits than its factorization.

71969315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30490.

The product of its digits is 51030, while the sum is 41.

The square root of 71969315 is about 8483.4730505849. The cubic root of 71969315 is about 415.9576567941.

The spelling of 71969315 in words is "seventy-one million, nine hundred sixty-nine thousand, three hundred fifteen".