72174369 has 12 divisors (see below), whose sum is σ = 101565456. Its totient is φ = 45583128.

The previous prime is 72174353. The next prime is 72174371. The reversal of 72174369 is 96347127.

It is not a de Polignac number, because 72174369 - 2⁴ = 72174353 is a prime.

It is a super-2 number, since 2×72174369² = 10418279081096322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (72174329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 32239 + ... + 34404.

It is an arithmetic number, because the mean of its divisors is an integer number (8463788).

Almost surely, 2^72174369 is an apocalyptic number.

It is an amenable number.

72174369 is a deficient number, since it is larger than the sum of its proper divisors (29391087).

72174369 is a wasteful number, since it uses less digits than its factorization.

72174369 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66684 (or 66665 counting only the distinct ones).

The product of its digits is 63504, while the sum is 39.

The square root of 72174369 is about 8495.5499527694. The cubic root of 72174369 is about 416.3523291781.

The spelling of 72174369 in words is "seventy-two million, one hundred seventy-four thousand, three hundred sixty-nine".