849907090 has 8 divisors (see below), whose sum is σ = 1529832780. Its totient is φ = 339962832.

The previous prime is 849907049. The next prime is 849907111. The reversal of 849907090 is 90709948.

It can be written as a sum of positive squares in 2 ways, for example, as 768564729 + 81342361 = 27723^2 + 9019^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 849907090.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42495345 + ... + 42495364.

Almost surely, 2^849907090 is an apocalyptic number.

849907090 is a deficient number, since it is larger than the sum of its proper divisors (679925690).

849907090 is a wasteful number, since it uses less digits than its factorization.

849907090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84990716.

The product of its (nonzero) digits is 163296, while the sum is 46.

The square root of 849907090 is about 29153.1660373277. The cubic root of 849907090 is about 947.2337219315.

The spelling of 849907090 in words is "eight hundred forty-nine million, nine hundred seven thousand, ninety".