72674989 has 2 divisors, whose sum is σ = 72674990. Its totient is φ = 72674988.

The previous prime is 72674977. The next prime is 72675011. The reversal of 72674989 is 98947627.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 41705764 + 30969225 = 6458^2 + 5565^2 .

It is a cyclic number.

It is not a de Polignac number, because 72674989 - 2¹⁵ = 72642221 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (72674909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 36337494 + 36337495.

It is an arithmetic number, because the mean of its divisors is an integer number (36337495).

Almost surely, 2^72674989 is an apocalyptic number.

It is an amenable number.

72674989 is a deficient number, since it is larger than the sum of its proper divisors (1).

72674989 is an equidigital number, since it uses as much as digits as its factorization.

72674989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1524096, while the sum is 52.

The square root of 72674989 is about 8524.9626978656. The cubic root of 72674989 is about 417.3127543098.

The spelling of 72674989 in words is "seventy-two million, six hundred seventy-four thousand, nine hundred eighty-nine".