74649587 has 2 divisors, whose sum is σ = 74649588. Its totient is φ = 74649586.

The previous prime is 74649577. The next prime is 74649593. The reversal of 74649587 is 78594647.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 74649587 - 2⁴ = 74649571 is a prime.

It is not a weakly prime, because it can be changed into another prime (74649517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37324793 + 37324794.

It is an arithmetic number, because the mean of its divisors is an integer number (37324794).

Almost surely, 2^74649587 is an apocalyptic number.

74649587 is a deficient number, since it is larger than the sum of its proper divisors (1).

74649587 is an equidigital number, since it uses as much as digits as its factorization.

74649587 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1693440, while the sum is 50.

The square root of 74649587 is about 8639.9992476852. Note that the first 3 decimals coincide. The cubic root of 74649587 is about 421.0585298606.

The spelling of 74649587 in words is "seventy-four million, six hundred forty-nine thousand, five hundred eighty-seven".