6373020921 has 4 divisors (see below), whose sum is σ = 8497361232. Its totient is φ = 4248680612.

The previous prime is 6373020919. The next prime is 6373020923. The reversal of 6373020921 is 1290203736.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (6373020919) and next prime (6373020923).

It is a cyclic number.

It is not a de Polignac number, because 6373020921 - 2¹ = 6373020919 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6373020923) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1062170151 + ... + 1062170156.

It is an arithmetic number, because the mean of its divisors is an integer number (2124340308).

Almost surely, 2^6373020921 is an apocalyptic number.

It is an amenable number.

6373020921 is a deficient number, since it is larger than the sum of its proper divisors (2124340311).

6373020921 is a wasteful number, since it uses less digits than its factorization.

6373020921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2124340310.

The product of its (nonzero) digits is 13608, while the sum is 33.

The square root of 6373020921 is about 79831.2026779003. The cubic root of 6373020921 is about 1854.0229882909.

The spelling of 6373020921 in words is "six billion, three hundred seventy-three million, twenty thousand, nine hundred twenty-one".