74605989 has 32 divisors (see below), whose sum is σ = 109120000. Its totient is φ = 45178560.

The previous prime is 74605987. The next prime is 74605991. The reversal of 74605989 is 98950647.

It is an interprime number because it is at equal distance from previous prime (74605987) and next prime (74605991).

It is not a de Polignac number, because 74605989 - 2¹ = 74605987 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74605987) 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 in 31 ways as a sum of consecutive naturals, for example, 149262 + ... + 149760.

It is an arithmetic number, because the mean of its divisors is an integer number (3410000).

Almost surely, 2^74605989 is an apocalyptic number.

It is an amenable number.

74605989 is a deficient number, since it is larger than the sum of its proper divisors (34514011).

74605989 is a wasteful number, since it uses less digits than its factorization.

74605989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 625.

The product of its (nonzero) digits is 544320, while the sum is 48.

The square root of 74605989 is about 8637.4758465654. The cubic root of 74605989 is about 420.9765428711.

The spelling of 74605989 in words is "seventy-four million, six hundred five thousand, nine hundred eighty-nine".