72867582 has 12 divisors (see below), whose sum is σ = 157879800. Its totient is φ = 24289188.

The previous prime is 72867533. The next prime is 72867583. The reversal of 72867582 is 28576827.

72867582 is a `hidden beast` number, since 7 + 2 + 8 + 67 + 582 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72867583) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2024082 + ... + 2024117.

It is an arithmetic number, because the mean of its divisors is an integer number (13156650).

Almost surely, 2^72867582 is an apocalyptic number.

72867582 is an abundant number, since it is smaller than the sum of its proper divisors (85012218).

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

72867582 is a wasteful number, since it uses less digits than its factorization.

72867582 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4048207 (or 4048204 counting only the distinct ones).

The product of its digits is 376320, while the sum is 45.

The square root of 72867582 is about 8536.2510506662. The cubic root of 72867582 is about 417.6810636109.

The spelling of 72867582 in words is "seventy-two million, eight hundred sixty-seven thousand, five hundred eighty-two".