72023671 has 2 divisors, whose sum is σ = 72023672. Its totient is φ = 72023670.

The previous prime is 72023663. The next prime is 72023681. The reversal of 72023671 is 17632027.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 72023671 - 2³ = 72023663 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72023681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36011835 + 36011836.

It is an arithmetic number, because the mean of its divisors is an integer number (36011836).

Almost surely, 2^72023671 is an apocalyptic number.

72023671 is a deficient number, since it is larger than the sum of its proper divisors (1).

72023671 is an equidigital number, since it uses as much as digits as its factorization.

72023671 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3528, while the sum is 28.

The square root of 72023671 is about 8486.6760866667. The cubic root of 72023671 is about 416.0623500449.

Adding to 72023671 its reverse (17632027), we get a palindrome (89655698).

The spelling of 72023671 in words is "seventy-two million, twenty-three thousand, six hundred seventy-one".