72986390 has 8 divisors (see below), whose sum is σ = 131375520. Its totient is φ = 29194552.

The previous prime is 72986387. The next prime is 72986393. The reversal of 72986390 is 9368927.

It is an interprime number because it is at equal distance from previous prime (72986387) and next prime (72986393).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72986393) 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, 3649310 + ... + 3649329.

It is an arithmetic number, because the mean of its divisors is an integer number (16421940).

Almost surely, 2^72986390 is an apocalyptic number.

72986390 is a deficient number, since it is larger than the sum of its proper divisors (58389130).

72986390 is a wasteful number, since it uses less digits than its factorization.

72986390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7298646.

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

The square root of 72986390 is about 8543.2072431845. The cubic root of 72986390 is about 417.9079450528.

The spelling of 72986390 in words is "seventy-two million, nine hundred eighty-six thousand, three hundred ninety".