71864679 has 8 divisors (see below), whose sum is σ = 95899392. Its totient is φ = 47869880.

The previous prime is 71864659. The next prime is 71864717. The reversal of 71864679 is 97646817.

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 71864679 - 2⁵ = 71864647 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (71864629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5487 + ... + 13184.

It is an arithmetic number, because the mean of its divisors is an integer number (11987424).

Almost surely, 2^71864679 is an apocalyptic number.

71864679 is a deficient number, since it is larger than the sum of its proper divisors (24034713).

71864679 is a wasteful number, since it uses less digits than its factorization.

71864679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19957.

The product of its digits is 508032, while the sum is 48.

The square root of 71864679 is about 8477.3037576814. The cubic root of 71864679 is about 415.7559724344.

The spelling of 71864679 in words is "seventy-one million, eight hundred sixty-four thousand, six hundred seventy-nine".