901099 has 4 divisors (see below), whose sum is σ = 905080. Its totient is φ = 897120.

The previous prime is 901097. The next prime is 901111. The reversal of 901099 is 990109.

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 901099 - 2¹ = 901097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (901093) 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, 1629 + ... + 2110.

It is an arithmetic number, because the mean of its divisors is an integer number (226270).

2⁹⁰¹⁰⁹⁹ is an apocalyptic number.

901099 is a deficient number, since it is larger than the sum of its proper divisors (3981).

901099 is a wasteful number, since it uses less digits than its factorization.

901099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3980.

The product of its (nonzero) digits is 729, while the sum is 28.

The square root of 901099 is about 949.2623451923. The cubic root of 901099 is about 96.5882214691.

The spelling of 901099 in words is "nine hundred one thousand, ninety-nine".