49090999 has 4 divisors (see below), whose sum is σ = 49374936. Its totient is φ = 48807064.

The previous prime is 49090963. The next prime is 49091017. The reversal of 49090999 is 99909094.

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

It is a cyclic number.

It is not a de Polignac number, because 49090999 - 2⁷ = 49090871 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 (49090919) 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, 141709 + ... + 142054.

It is an arithmetic number, because the mean of its divisors is an integer number (12343734).

Almost surely, 2^49090999 is an apocalyptic number.

49090999 is a deficient number, since it is larger than the sum of its proper divisors (283937).

49090999 is a wasteful number, since it uses less digits than its factorization.

49090999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283936.

The product of its (nonzero) digits is 236196, while the sum is 49.

The square root of 49090999 is about 7006.4969135796. The cubic root of 49090999 is about 366.1569568774.

The spelling of 49090999 in words is "forty-nine million, ninety thousand, nine hundred ninety-nine".