71268987 has 8 divisors (see below), whose sum is σ = 95866704. Its totient is φ = 47091968.

The previous prime is 71268983. The next prime is 71268997. The reversal of 71268987 is 78986217.

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 71268987 - 2² = 71268983 is a prime.

It is not an unprimeable number, because it can be changed into a prime (71268983) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104778 + ... + 105455.

It is an arithmetic number, because the mean of its divisors is an integer number (11983338).

Almost surely, 2^71268987 is an apocalyptic number.

71268987 is a deficient number, since it is larger than the sum of its proper divisors (24597717).

71268987 is a wasteful number, since it uses less digits than its factorization.

71268987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210349.

The product of its digits is 338688, while the sum is 48.

The square root of 71268987 is about 8442.0961259630. The cubic root of 71268987 is about 414.6040390277.

The spelling of 71268987 in words is "seventy-one million, two hundred sixty-eight thousand, nine hundred eighty-seven".