74632489 has 2 divisors, whose sum is σ = 74632490. Its totient is φ = 74632488.

The previous prime is 74632433. The next prime is 74632507. The reversal of 74632489 is 98423647.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 69305625 + 5326864 = 8325^2 + 2308^2 .

It is a cyclic number.

It is not a de Polignac number, because 74632489 - 2¹¹ = 74630441 is a prime.

It is not a weakly prime, because it can be changed into another prime (74639489) 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, 37316244 + 37316245.

It is an arithmetic number, because the mean of its divisors is an integer number (37316245).

Almost surely, 2^74632489 is an apocalyptic number.

It is an amenable number.

74632489 is a deficient number, since it is larger than the sum of its proper divisors (1).

74632489 is an equidigital number, since it uses as much as digits as its factorization.

74632489 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 290304, while the sum is 43.

The square root of 74632489 is about 8639.0097233421. The cubic root of 74632489 is about 421.0263805045.

The spelling of 74632489 in words is "seventy-four million, six hundred thirty-two thousand, four hundred eighty-nine".