9000493861 has 4 divisors (see below), whose sum is σ = 9004282732. Its totient is φ = 8996704992.

The previous prime is 9000493829. The next prime is 9000493877. The reversal of 9000493861 is 1683940009.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6866608225 + 2133885636 = 82865^2 + 46194^2 .

It is a cyclic number.

It is not a de Polignac number, because 9000493861 - 2⁵ = 9000493829 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9000497861) 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, 1890870 + ... + 1895623.

It is an arithmetic number, because the mean of its divisors is an integer number (2251070683).

Almost surely, 2^9000493861 is an apocalyptic number.

It is an amenable number.

9000493861 is a deficient number, since it is larger than the sum of its proper divisors (3788871).

9000493861 is a wasteful number, since it uses less digits than its factorization.

9000493861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3788870.

The product of its (nonzero) digits is 46656, while the sum is 40.

The square root of 9000493861 is about 94870.9326453577. The cubic root of 9000493861 is about 2080.1218694774.

The spelling of 9000493861 in words is "nine billion, four hundred ninety-three thousand, eight hundred sixty-one".