74649598 has 4 divisors (see below), whose sum is σ = 111974400. Its totient is φ = 37324798.

The previous prime is 74649593. The next prime is 74649607. The reversal of 74649598 is 89594647.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74649593) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18662398 + ... + 18662401.

It is an arithmetic number, because the mean of its divisors is an integer number (27993600).

Almost surely, 2^74649598 is an apocalyptic number.

74649598 is a deficient number, since it is larger than the sum of its proper divisors (37324802).

74649598 is a wasteful number, since it uses less digits than its factorization.

74649598 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37324801.

The product of its digits is 2177280, while the sum is 52.

The square root of 74649598 is about 8639.9998842593. Note that the first 3 decimals coincide. The cubic root of 74649598 is about 421.0585505423.

The spelling of 74649598 in words is "seventy-four million, six hundred forty-nine thousand, five hundred ninety-eight".