74779850 has 12 divisors (see below), whose sum is σ = 139090614. Its totient is φ = 29911920.

The previous prime is 74779829. The next prime is 74779853. The reversal of 74779850 is 5897747.

It can be written as a sum of positive squares in 3 ways, for example, as 47458321 + 27321529 = 6889^2 + 5227^2 .

It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 74779795 and 74779804.

It is not an unprimeable number, because it can be changed into a prime (74779853) 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, 747749 + ... + 747848.

Almost surely, 2^74779850 is an apocalyptic number.

74779850 is a deficient number, since it is larger than the sum of its proper divisors (64310764).

74779850 is a wasteful number, since it uses less digits than its factorization.

74779850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1495609 (or 1495604 counting only the distinct ones).

The product of its (nonzero) digits is 493920, while the sum is 47.

The square root of 74779850 is about 8647.5343306633. The cubic root of 74779850 is about 421.3033022568.

The spelling of 74779850 in words is "seventy-four million, seven hundred seventy-nine thousand, eight hundred fifty".