74392798 has 4 divisors (see below), whose sum is σ = 111589200. Its totient is φ = 37196398.

The previous prime is 74392793. The next prime is 74392807. The reversal of 74392798 is 89729347.

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

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74392793) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18598198 + ... + 18598201.

It is an arithmetic number, because the mean of its divisors is an integer number (27897300).

Almost surely, 2^74392798 is an apocalyptic number.

74392798 is a deficient number, since it is larger than the sum of its proper divisors (37196402).

74392798 is a wasteful number, since it uses less digits than its factorization.

74392798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37196401.

The product of its digits is 762048, while the sum is 49.

The square root of 74392798 is about 8625.1259700946. The cubic root of 74392798 is about 420.5751719068.

The spelling of 74392798 in words is "seventy-four million, three hundred ninety-two thousand, seven hundred ninety-eight".