50397784 has 16 divisors (see below), whose sum is σ = 98604720. Its totient is φ = 24103200.

The previous prime is 50397769. The next prime is 50397803. The reversal of 50397784 is 48779305.

It is a happy number.

It is a super-2 number, since 2×50397784² = 5079873264221312, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 50397784.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 136767 + ... + 137134.

It is an arithmetic number, because the mean of its divisors is an integer number (6162795).

Almost surely, 2^50397784 is an apocalyptic number.

It is an amenable number.

50397784 is a deficient number, since it is larger than the sum of its proper divisors (48206936).

50397784 is a wasteful number, since it uses less digits than its factorization.

50397784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273930 (or 273926 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 43.

The square root of 50397784 is about 7099.1396661849. The cubic root of 50397784 is about 369.3775363024.

The spelling of 50397784 in words is "fifty million, three hundred ninety-seven thousand, seven hundred eighty-four".