71468909 has 4 divisors (see below), whose sum is σ = 71596416. Its totient is φ = 71341404.

The previous prime is 71468897. The next prime is 71468911. The reversal of 71468909 is 90986417.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 90986417 = 241 ⋅377537.

It is a cyclic number.

It is not a de Polignac number, because 71468909 - 2²⁰ = 70420333 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 71468909.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71468939) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62909 + ... + 64034.

It is an arithmetic number, because the mean of its divisors is an integer number (17899104).

Almost surely, 2^71468909 is an apocalyptic number.

It is an amenable number.

71468909 is a deficient number, since it is larger than the sum of its proper divisors (127507).

71468909 is a wasteful number, since it uses less digits than its factorization.

71468909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127506.

The product of its (nonzero) digits is 108864, while the sum is 44.

The square root of 71468909 is about 8453.9286133726. The cubic root of 71468909 is about 414.9913560884.

The spelling of 71468909 in words is "seventy-one million, four hundred sixty-eight thousand, nine hundred nine".