1990633327 has 2 divisors, whose sum is σ = 1990633328. Its totient is φ = 1990633326.

The previous prime is 1990633297. The next prime is 1990633387. The reversal of 1990633327 is 7233360991.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1990633327 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1990633387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 995316663 + 995316664.

It is an arithmetic number, because the mean of its divisors is an integer number (995316664).

Almost surely, 2^1990633327 is an apocalyptic number.

1990633327 is a deficient number, since it is larger than the sum of its proper divisors (1).

1990633327 is an equidigital number, since it uses as much as digits as its factorization.

1990633327 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 183708, while the sum is 43.

The square root of 1990633327 is about 44616.5140614997. The cubic root of 1990633327 is about 1257.9510932835.

The spelling of 1990633327 in words is "one billion, nine hundred ninety million, six hundred thirty-three thousand, three hundred twenty-seven".