373066821 has 6 divisors (see below), whose sum is σ = 538874310. Its totient is φ = 248711208.

The previous prime is 373066807. The next prime is 373066849. The reversal of 373066821 is 128660373.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 372914721 + 152100 = 19311^2 + 390^2 .

It is not a de Polignac number, because 373066821 - 2¹⁴ = 373050437 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (373066861) 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 5 ways as a sum of consecutive naturals, for example, 20725926 + ... + 20725943.

It is an arithmetic number, because the mean of its divisors is an integer number (89812385).

Almost surely, 2^373066821 is an apocalyptic number.

It is an amenable number.

373066821 is a deficient number, since it is larger than the sum of its proper divisors (165807489).

373066821 is a wasteful number, since it uses less digits than its factorization.

373066821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41451875 (or 41451872 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 36.

The square root of 373066821 is about 19314.9377684734. The cubic root of 373066821 is about 719.8834823023.

The spelling of 373066821 in words is "three hundred seventy-three million, sixty-six thousand, eight hundred twenty-one".