9000693890 has 8 divisors (see below), whose sum is σ = 16201249020. Its totient is φ = 3600277552.

The previous prime is 9000693839. The next prime is 9000693893. The reversal of 9000693890 is 983960009.

It can be written as a sum of positive squares in 2 ways, for example, as 8766389641 + 234304249 = 93629^2 + 15307^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (9000693893) 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, 450034685 + ... + 450034704.

Almost surely, 2^9000693890 is an apocalyptic number.

9000693890 is a deficient number, since it is larger than the sum of its proper divisors (7200555130).

9000693890 is a wasteful number, since it uses less digits than its factorization.

9000693890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 900069396.

The product of its (nonzero) digits is 104976, while the sum is 44.

The square root of 9000693890 is about 94871.9868559735. The cubic root of 9000693890 is about 2080.1372790620.

The spelling of 9000693890 in words is "nine billion, six hundred ninety-three thousand, eight hundred ninety".