1690002931 has 2 divisors, whose sum is σ = 1690002932. Its totient is φ = 1690002930.

The previous prime is 1690002889. The next prime is 1690002949. The reversal of 1690002931 is 1392000961.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1690002931 - 2¹³ = 1689994739 is a prime.

It is a super-2 number, since 2×1690002931² = 5712219813577181522, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1690002893 and 1690002902.

It is not a weakly prime, because it can be changed into another prime (1690002961) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 845001465 + 845001466.

It is an arithmetic number, because the mean of its divisors is an integer number (845001466).

Almost surely, 2^1690002931 is an apocalyptic number.

1690002931 is a deficient number, since it is larger than the sum of its proper divisors (1).

1690002931 is an equidigital number, since it uses as much as digits as its factorization.

1690002931 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2916, while the sum is 31.

The square root of 1690002931 is about 41109.6452307728. The cubic root of 1690002931 is about 1191.1391138009.

The spelling of 1690002931 in words is "one billion, six hundred ninety million, two thousand, nine hundred thirty-one".