1790997553 has 2 divisors, whose sum is σ = 1790997554. Its totient is φ = 1790997552.

The previous prime is 1790997541. The next prime is 1790997577. The reversal of 1790997553 is 3557990971.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 993951729 + 797045824 = 31527^2 + 28232^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1790997553 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1790997494 and 1790997503.

It is not a weakly prime, because it can be changed into another prime (1790997653) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 895498776 + 895498777.

It is an arithmetic number, because the mean of its divisors is an integer number (895498777).

Almost surely, 2^1790997553 is an apocalyptic number.

It is an amenable number.

1790997553 is a deficient number, since it is larger than the sum of its proper divisors (1).

1790997553 is an equidigital number, since it uses as much as digits as its factorization.

1790997553 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2679075, while the sum is 55.

The square root of 1790997553 is about 42320.1790284493. The cubic root of 1790997553 is about 1214.4090569578.

The spelling of 1790997553 in words is "one billion, seven hundred ninety million, nine hundred ninety-seven thousand, five hundred fifty-three".