900067993 has 16 divisors (see below), whose sum is σ = 1041397632. Its totient is φ = 769824000.

The previous prime is 900067991. The next prime is 900067999. The reversal of 900067993 is 399760009.

It is not a de Polignac number, because 900067993 - 2¹ = 900067991 is a prime.

It is not an unprimeable number, because it can be changed into a prime (900067991) 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 15 ways as a sum of consecutive naturals, for example, 13728 + ... + 44593.

It is an arithmetic number, because the mean of its divisors is an integer number (65087352).

Almost surely, 2^900067993 is an apocalyptic number.

It is an amenable number.

900067993 is a deficient number, since it is larger than the sum of its proper divisors (141329639).

900067993 is a wasteful number, since it uses less digits than its factorization.

900067993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58416.

The product of its (nonzero) digits is 91854, while the sum is 43.

The square root of 900067993 is about 30001.1331952645. The cubic root of 900067993 is about 965.5136975192.

The spelling of 900067993 in words is "nine hundred million, sixty-seven thousand, nine hundred ninety-three".