71728862 has 8 divisors (see below), whose sum is σ = 109882656. Its totient is φ = 35101312.

The previous prime is 71728843. The next prime is 71728871. The reversal of 71728862 is 26882717.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-3 number, since 3×71728862³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 381443 + ... + 381630.

It is an arithmetic number, because the mean of its divisors is an integer number (13735332).

Almost surely, 2^71728862 is an apocalyptic number.

71728862 is a deficient number, since it is larger than the sum of its proper divisors (38153794).

71728862 is a wasteful number, since it uses less digits than its factorization.

71728862 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 763122.

The product of its digits is 75264, while the sum is 41.

The square root of 71728862 is about 8469.2893444492. The cubic root of 71728862 is about 415.4938949705.

The spelling of 71728862 in words is "seventy-one million, seven hundred twenty-eight thousand, eight hundred sixty-two".