74778411 has 8 divisors (see below), whose sum is σ = 99767440. Its totient is φ = 49820832.

The previous prime is 74778397. The next prime is 74778413. The reversal of 74778411 is 11487747.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 74778411 - 2¹¹ = 74776363 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 74778411.

It is not an unprimeable number, because it can be changed into a prime (74778413) 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 7 ways as a sum of consecutive naturals, for example, 1600 + ... + 12333.

It is an arithmetic number, because the mean of its divisors is an integer number (12470930).

Almost surely, 2^74778411 is an apocalyptic number.

74778411 is a deficient number, since it is larger than the sum of its proper divisors (24989029).

74778411 is a wasteful number, since it uses less digits than its factorization.

74778411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15725.

The product of its digits is 43904, while the sum is 39.

The square root of 74778411 is about 8647.4511273554. The cubic root of 74778411 is about 421.3005998383.

The spelling of 74778411 in words is "seventy-four million, seven hundred seventy-eight thousand, four hundred eleven".