376763221 has 4 divisors (see below), whose sum is σ = 376901100. Its totient is φ = 376625344.

The previous prime is 376763209. The next prime is 376763249. The reversal of 376763221 is 122367673.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 122367673 = 613 ⋅199621.

It can be written as a sum of positive squares in 2 ways, for example, as 324360100 + 52403121 = 18010^2 + 7239^2 .

It is a cyclic number.

It is not a de Polignac number, because 376763221 - 2¹¹ = 376761173 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (376763201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64756 + ... + 70333.

It is an arithmetic number, because the mean of its divisors is an integer number (94225275).

Almost surely, 2^376763221 is an apocalyptic number.

It is an amenable number.

376763221 is a deficient number, since it is larger than the sum of its proper divisors (137879).

376763221 is a wasteful number, since it uses less digits than its factorization.

376763221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137878.

The product of its digits is 63504, while the sum is 37.

The square root of 376763221 is about 19410.3895118053. The cubic root of 376763221 is about 722.2532426816.

The spelling of 376763221 in words is "three hundred seventy-six million, seven hundred sixty-three thousand, two hundred twenty-one".