1993031 has 2 divisors, whose sum is σ = 1993032. Its totient is φ = 1993030.

The previous prime is 1992983. The next prime is 1993037. The reversal of 1993031 is 1303991.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1993031 - 2¹⁴ = 1976647 is a prime.

It is a super-2 number, since 2×1993031² = 7944345133922, which contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1993037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 996515 + 996516.

It is an arithmetic number, because the mean of its divisors is an integer number (996516).

2^1993031 is an apocalyptic number.

1993031 is a deficient number, since it is larger than the sum of its proper divisors (1).

1993031 is an equidigital number, since it uses as much as digits as its factorization.

1993031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 729, while the sum is 26.

The square root of 1993031 is about 1411.7474986696. The cubic root of 1993031 is about 125.8455948560.

The spelling of 1993031 in words is "one million, nine hundred ninety-three thousand, thirty-one".