1099957 has 2 divisors, whose sum is σ = 1099958. Its totient is φ = 1099956.

The previous prime is 1099933. The next prime is 1099961. The reversal of 1099957 is 7599901.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 568516 + 531441 = 754^2 + 729^2 .

It is a cyclic number.

It is not a de Polignac number, because 1099957 - 2¹¹ = 1097909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1099927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 549978 + 549979.

It is an arithmetic number, because the mean of its divisors is an integer number (549979).

2^1099957 is an apocalyptic number.

It is an amenable number.

1099957 is a deficient number, since it is larger than the sum of its proper divisors (1).

1099957 is an equidigital number, since it uses as much as digits as its factorization.

1099957 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25515, while the sum is 40.

The square root of 1099957 is about 1048.7883485241. The cubic root of 1099957 is about 103.2266664358.

The spelling of 1099957 in words is "one million, ninety-nine thousand, nine hundred fifty-seven".