72674453 has 2 divisors, whose sum is σ = 72674454. Its totient is φ = 72674452.

The previous prime is 72674419. The next prime is 72674461. The reversal of 72674453 is 35447627.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 64368529 + 8305924 = 8023^2 + 2882^2 .

It is an emirp because it is prime and its reverse (35447627) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 72674453 - 2⁶ = 72674389 is a prime.

It is a super-2 number, since 2×72674453² = 10563152237698418, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72677453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36337226 + 36337227.

It is an arithmetic number, because the mean of its divisors is an integer number (36337227).

Almost surely, 2^72674453 is an apocalyptic number.

It is an amenable number.

72674453 is a deficient number, since it is larger than the sum of its proper divisors (1).

72674453 is an equidigital number, since it uses as much as digits as its factorization.

72674453 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 141120, while the sum is 38.

The square root of 72674453 is about 8524.9312607199. The cubic root of 72674453 is about 417.3117283714.

The spelling of 72674453 in words is "seventy-two million, six hundred seventy-four thousand, four hundred fifty-three".