74437009 has 2 divisors, whose sum is σ = 74437010. Its totient is φ = 74437008.

The previous prime is 74437001. The next prime is 74437031. The reversal of 74437009 is 90073447.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 56670784 + 17766225 = 7528^2 + 4215^2 .

It is a cyclic number.

It is not a de Polignac number, because 74437009 - 2³ = 74437001 is a prime.

It is not a weakly prime, because it can be changed into another prime (74437001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37218504 + 37218505.

It is an arithmetic number, because the mean of its divisors is an integer number (37218505).

Almost surely, 2^74437009 is an apocalyptic number.

It is an amenable number.

74437009 is a deficient number, since it is larger than the sum of its proper divisors (1).

74437009 is an equidigital number, since it uses as much as digits as its factorization.

74437009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21168, while the sum is 34.

The square root of 74437009 is about 8627.6885085172. The cubic root of 74437009 is about 420.6584701436.

The spelling of 74437009 in words is "seventy-four million, four hundred thirty-seven thousand, nine".