10999901 has 16 divisors (see below), whose sum is σ = 12934080. Its totient is φ = 9242880.

The previous prime is 10999871. The next prime is 10999949.

It is a happy number.

10999901 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 10999901 - 2⁶ = 10999837 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 (10999951) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10535 + ... + 11531.

It is an arithmetic number, because the mean of its divisors is an integer number (808380).

Almost surely, 2^10999901 is an apocalyptic number.

10999901 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

10999901 is a deficient number, since it is larger than the sum of its proper divisors (1934179).

10999901 is a wasteful number, since it uses less digits than its factorization.

10999901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1084.

The product of its (nonzero) digits is 6561, while the sum is 38.

The square root of 10999901 is about 3316.6098655103. The cubic root of 10999901 is about 222.3973418609.

The spelling of 10999901 in words is "ten million, nine hundred ninety-nine thousand, nine hundred one".