74804139 has 6 divisors (see below), whose sum is σ = 108050436. Its totient is φ = 49869420.

The previous prime is 74804129. The next prime is 74804141. The reversal of 74804139 is 93140847.

It is a happy number.

It is not a de Polignac number, because 74804139 - 2¹³ = 74795947 is a prime.

It is not an unprimeable number, because it can be changed into a prime (74804129) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4155777 + ... + 4155794.

It is an arithmetic number, because the mean of its divisors is an integer number (18008406).

Almost surely, 2^74804139 is an apocalyptic number.

74804139 is a deficient number, since it is larger than the sum of its proper divisors (33246297).

74804139 is a wasteful number, since it uses less digits than its factorization.

74804139 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8311577 (or 8311574 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The square root of 74804139 is about 8648.9386054012. The cubic root of 74804139 is about 421.3489113711.

The spelling of 74804139 in words is "seventy-four million, eight hundred four thousand, one hundred thirty-nine".