74089397 has 2 divisors, whose sum is σ = 74089398. Its totient is φ = 74089396.

The previous prime is 74089361. The next prime is 74089453. The reversal of 74089397 is 79398047.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 67256401 + 6832996 = 8201^2 + 2614^2 .

It is a cyclic number.

It is not a de Polignac number, because 74089397 - 2⁶ = 74089333 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74089307) 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, 37044698 + 37044699.

It is an arithmetic number, because the mean of its divisors is an integer number (37044699).

Almost surely, 2^74089397 is an apocalyptic number.

It is an amenable number.

74089397 is a deficient number, since it is larger than the sum of its proper divisors (1).

74089397 is an equidigital number, since it uses as much as digits as its factorization.

74089397 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 381024, while the sum is 47.

The square root of 74089397 is about 8607.5197937617. The cubic root of 74089397 is about 420.0026398171.

The spelling of 74089397 in words is "seventy-four million, eighty-nine thousand, three hundred ninety-seven".