373788821 has 16 divisors (see below), whose sum is σ = 433802880. Its totient is φ = 315463680.

The previous prime is 373788803. The next prime is 373788823. The reversal of 373788821 is 128887373.

It is a happy number.

It is not a de Polignac number, because 373788821 - 2¹⁸ = 373526677 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (373788823) 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 15 ways as a sum of consecutive naturals, for example, 141965 + ... + 144573.

It is an arithmetic number, because the mean of its divisors is an integer number (27112680).

Almost surely, 2^373788821 is an apocalyptic number.

It is an amenable number.

373788821 is a deficient number, since it is larger than the sum of its proper divisors (60014059).

373788821 is a wasteful number, since it uses less digits than its factorization.

373788821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2924.

The product of its digits is 451584, while the sum is 47.

The square root of 373788821 is about 19333.6189317986. The cubic root of 373788821 is about 720.3475823051.

The spelling of 373788821 in words is "three hundred seventy-three million, seven hundred eighty-eight thousand, eight hundred twenty-one".