71266830 has 32 divisors (see below), whose sum is σ = 176560128. Its totient is φ = 18391200.

The previous prime is 71266823. The next prime is 71266841. The reversal of 71266830 is 3866217.

It is a super-3 number, since 3×71266830³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 71266791 and 71266800.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37386 + ... + 39245.

It is an arithmetic number, because the mean of its divisors is an integer number (5517504).

Almost surely, 2^71266830 is an apocalyptic number.

71266830 is an abundant number, since it is smaller than the sum of its proper divisors (105293298).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

71266830 is a wasteful number, since it uses less digits than its factorization.

71266830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76672.

The product of its (nonzero) digits is 12096, while the sum is 33.

The square root of 71266830 is about 8441.9683723644. The cubic root of 71266830 is about 414.5998562362.

The spelling of 71266830 in words is "seventy-one million, two hundred sixty-six thousand, eight hundred thirty".