71772830 has 16 divisors (see below), whose sum is σ = 129300624. Its totient is φ = 28684800.

The previous prime is 71772829. The next prime is 71772863. The reversal of 71772830 is 3827717.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13769 + ... + 18251.

It is an arithmetic number, because the mean of its divisors is an integer number (8081289).

Almost surely, 2^71772830 is an apocalyptic number.

71772830 is a deficient number, since it is larger than the sum of its proper divisors (57527794).

71772830 is a wasteful number, since it uses less digits than its factorization.

71772830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6091.

The product of its (nonzero) digits is 16464, while the sum is 35.

The square root of 71772830 is about 8471.8846781575. The cubic root of 71772830 is about 415.5787734217.

The spelling of 71772830 in words is "seventy-one million, seven hundred seventy-two thousand, eight hundred thirty".