867306993 has 16 divisors (see below), whose sum is σ = 1322127360. Its totient is φ = 495410256.

The previous prime is 867306991. The next prime is 867307039. The reversal of 867306993 is 399603768.

It is a happy number.

It is not a de Polignac number, because 867306993 - 2¹ = 867306991 is a prime.

It is not an unprimeable number, because it can be changed into a prime (867306991) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60448 + ... + 73406.

It is an arithmetic number, because the mean of its divisors is an integer number (82632960).

Almost surely, 2^867306993 is an apocalyptic number.

It is an amenable number.

867306993 is a deficient number, since it is larger than the sum of its proper divisors (454820367).

867306993 is a wasteful number, since it uses less digits than its factorization.

867306993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16156.

The product of its (nonzero) digits is 1469664, while the sum is 51.

The square root of 867306993 is about 29450.0762817348. The cubic root of 867306993 is about 953.6542517337.

The spelling of 867306993 in words is "eight hundred sixty-seven million, three hundred six thousand, nine hundred ninety-three".