72926361 has 6 divisors (see below), whose sum is σ = 105338090. Its totient is φ = 48617568.

The previous prime is 72926327. The next prime is 72926377. The reversal of 72926361 is 16362927.

72926361 is a `hidden beast` number, since 7 + 292 + 6 + 361 = 666.

It can be written as a sum of positive squares in only one way, i.e., 56475225 + 16451136 = 7515^2 + 4056^2 .

It is not a de Polignac number, because 72926361 - 2⁷ = 72926233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72926761) 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 5 ways as a sum of consecutive naturals, for example, 4051456 + ... + 4051473.

Almost surely, 2^72926361 is an apocalyptic number.

It is an amenable number.

72926361 is a deficient number, since it is larger than the sum of its proper divisors (32411729).

72926361 is a wasteful number, since it uses less digits than its factorization.

72926361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8102935 (or 8102932 counting only the distinct ones).

The product of its digits is 27216, while the sum is 36.

The square root of 72926361 is about 8539.6932614702. The cubic root of 72926361 is about 417.7933416004.

The spelling of 72926361 in words is "seventy-two million, nine hundred twenty-six thousand, three hundred sixty-one".