74777379 has 8 divisors (see below), whose sum is σ = 100618320. Its totient is φ = 49394016.

The previous prime is 74777359. The next prime is 74777383. The reversal of 74777379 is 97377747.

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

It is not a de Polignac number, because 74777379 - 2⁷ = 74777251 is a prime.

It is not an unprimeable number, because it can be changed into a prime (74777359) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 114012 + ... + 114665.

It is an arithmetic number, because the mean of its divisors is an integer number (12577290).

Almost surely, 2^74777379 is an apocalyptic number.

74777379 is a deficient number, since it is larger than the sum of its proper divisors (25840941).

74777379 is a wasteful number, since it uses less digits than its factorization.

74777379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228789.

The product of its digits is 1815156, while the sum is 51.

The square root of 74777379 is about 8647.3914563873. The cubic root of 74777379 is about 421.2986617378.

The spelling of 74777379 in words is "seventy-four million, seven hundred seventy-seven thousand, three hundred seventy-nine".