72987582 has 16 divisors (see below), whose sum is σ = 146733840. Its totient is φ = 24202752.

The previous prime is 72987581. The next prime is 72987601. The reversal of 72987582 is 28578927.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72987581) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30357 + ... + 32672.

It is an arithmetic number, because the mean of its divisors is an integer number (9170865).

Almost surely, 2^72987582 is an apocalyptic number.

72987582 is an abundant number, since it is smaller than the sum of its proper divisors (73746258).

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

72987582 is a wasteful number, since it uses less digits than its factorization.

72987582 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63227.

The product of its digits is 564480, while the sum is 48.

The square root of 72987582 is about 8543.2770059269. The cubic root of 72987582 is about 417.9102201051.

The spelling of 72987582 in words is "seventy-two million, nine hundred eighty-seven thousand, five hundred eighty-two".