1690825063 has 2 divisors, whose sum is σ = 1690825064. Its totient is φ = 1690825062.

The previous prime is 1690825057. The next prime is 1690825091. The reversal of 1690825063 is 3605280961.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1690825063 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1690825043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 845412531 + 845412532.

It is an arithmetic number, because the mean of its divisors is an integer number (845412532).

Almost surely, 2^1690825063 is an apocalyptic number.

1690825063 is a deficient number, since it is larger than the sum of its proper divisors (1).

1690825063 is an equidigital number, since it uses as much as digits as its factorization.

1690825063 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 77760, while the sum is 40.

The square root of 1690825063 is about 41119.6432742309. The cubic root of 1690825063 is about 1191.3322327618.

The spelling of 1690825063 in words is "one billion, six hundred ninety million, eight hundred twenty-five thousand, sixty-three".