72280986 has 16 divisors (see below), whose sum is σ = 144975744. Its totient is φ = 24024704.

The previous prime is 72280969. The next prime is 72281003. The reversal of 72280986 is 68908227.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (72280969) and next prime (72281003).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14946 + ... + 19181.

It is an arithmetic number, because the mean of its divisors is an integer number (9060984).

Almost surely, 2^72280986 is an apocalyptic number.

72280986 is an abundant number, since it is smaller than the sum of its proper divisors (72694758).

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

72280986 is a wasteful number, since it uses less digits than its factorization.

72280986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34485.

The product of its (nonzero) digits is 96768, while the sum is 42.

The square root of 72280986 is about 8501.8225104974. The cubic root of 72280986 is about 416.5572421634.

The spelling of 72280986 in words is "seventy-two million, two hundred eighty thousand, nine hundred eighty-six".