10821307 has 10 divisors (see below), whose sum is σ = 12626908. Its totient is φ = 9273348.

The previous prime is 10821287. The next prime is 10821313. The reversal of 10821307 is 70312801.

It is not a de Polignac number, because 10821307 - 2⁷ = 10821179 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10821347) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 148 + ... + 4654.

Almost surely, 2^10821307 is an apocalyptic number.

10821307 is a deficient number, since it is larger than the sum of its proper divisors (1805601).

10821307 is an frugal number, since it uses more digits than its factorization.

10821307 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4535 (or 4514 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 22.

The square root of 10821307 is about 3289.5755045294. The cubic root of 10821307 is about 221.1871567611.

The spelling of 10821307 in words is "ten million, eight hundred twenty-one thousand, three hundred seven".