74939855 has 16 divisors (see below), whose sum is σ = 92206080. Its totient is φ = 58443552.

The previous prime is 74939849. The next prime is 74939867. The reversal of 74939855 is 55893947.

It is a cyclic number.

It is not a de Polignac number, because 74939855 - 2¹² = 74935759 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 81086 + ... + 82004.

It is an arithmetic number, because the mean of its divisors is an integer number (5762880).

Almost surely, 2^74939855 is an apocalyptic number.

74939855 is a deficient number, since it is larger than the sum of its proper divisors (17266225).

74939855 is a wasteful number, since it uses less digits than its factorization.

74939855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1318.

The product of its digits is 1360800, while the sum is 50.

The square root of 74939855 is about 8656.7808681981. The cubic root of 74939855 is about 421.6035730422.

It can be divided in two parts, 749 and 39855, that added together give a palindrome (40604).

The spelling of 74939855 in words is "seventy-four million, nine hundred thirty-nine thousand, eight hundred fifty-five".