1650097 has 2 divisors, whose sum is σ = 1650098. Its totient is φ = 1650096.

The previous prime is 1650091. The next prime is 1650101. The reversal of 1650097 is 7900561.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 929296 + 720801 = 964^2 + 849^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1650097 is a prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (1650091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 825048 + 825049.

It is an arithmetic number, because the mean of its divisors is an integer number (825049).

2^1650097 is an apocalyptic number.

It is an amenable number.

1650097 is a deficient number, since it is larger than the sum of its proper divisors (1).

1650097 is an equidigital number, since it uses as much as digits as its factorization.

1650097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1890, while the sum is 28.

The square root of 1650097 is about 1284.5610145104. The cubic root of 1650097 is about 118.1688905888.

The spelling of 1650097 in words is "one million, six hundred fifty thousand, ninety-seven".