1690093963 has 2 divisors, whose sum is σ = 1690093964. Its totient is φ = 1690093962.

The previous prime is 1690093957. The next prime is 1690094093. The reversal of 1690093963 is 3693900961.

It is a weak prime.

It is an emirp because it is prime and its reverse (3693900961) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1690093963 - 2¹⁷ = 1689962891 is a prime.

It is not a weakly prime, because it can be changed into another prime (1690093943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 845046981 + 845046982.

It is an arithmetic number, because the mean of its divisors is an integer number (845046982).

Almost surely, 2^1690093963 is an apocalyptic number.

1690093963 is a deficient number, since it is larger than the sum of its proper divisors (1).

1690093963 is an equidigital number, since it uses as much as digits as its factorization.

1690093963 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 236196, while the sum is 46.

The square root of 1690093963 is about 41110.7524012879. The cubic root of 1690093963 is about 1191.1605003179.

The spelling of 1690093963 in words is "one billion, six hundred ninety million, ninety-three thousand, nine hundred sixty-three".