72989630 has 16 divisors (see below), whose sum is σ = 150150240. Its totient is φ = 25024992.

The previous prime is 72989629. The next prime is 72989677. The reversal of 72989630 is 3698927.

It is an alternating number because its digits alternate between odd and even.

It is a plaindrome in base 16.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 521285 + ... + 521424.

It is an arithmetic number, because the mean of its divisors is an integer number (9384390).

Almost surely, 2^72989630 is an apocalyptic number.

72989630 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

72989630 is an abundant number, since it is smaller than the sum of its proper divisors (77160610).

72989630 is a wasteful number, since it uses less digits than its factorization.

72989630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1042723.

The product of its (nonzero) digits is 163296, while the sum is 44.

The square root of 72989630 is about 8543.3968654160. The cubic root of 72989630 is about 417.9141288619.

The spelling of 72989630 in words is "seventy-two million, nine hundred eighty-nine thousand, six hundred thirty".