72831827 has 4 divisors (see below), whose sum is σ = 72896256. Its totient is φ = 72767400.

The previous prime is 72831817. The next prime is 72831877. The reversal of 72831827 is 72813827.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 72831827 - 2⁸ = 72831571 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72831817) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30488 + ... + 32789.

It is an arithmetic number, because the mean of its divisors is an integer number (18224064).

Almost surely, 2^72831827 is an apocalyptic number.

72831827 is a deficient number, since it is larger than the sum of its proper divisors (64429).

72831827 is a wasteful number, since it uses less digits than its factorization.

72831827 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64428.

The product of its digits is 37632, while the sum is 38.

The square root of 72831827 is about 8534.1564902455. The cubic root of 72831827 is about 417.6127358793.

The spelling of 72831827 in words is "seventy-two million, eight hundred thirty-one thousand, eight hundred twenty-seven".