1663037 has 4 divisors (see below), whose sum is σ = 1671936. Its totient is φ = 1654140.

The previous prime is 1663031. The next prime is 1663073. The reversal of 1663037 is 7303661.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 7303661 = 571 ⋅12791.

It is a cyclic number.

It is not a de Polignac number, because 1663037 - 2⁸ = 1662781 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1662997 and 1663015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1663031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4163 + ... + 4544.

It is an arithmetic number, because the mean of its divisors is an integer number (417984).

2^1663037 is an apocalyptic number.

It is an amenable number.

1663037 is a deficient number, since it is larger than the sum of its proper divisors (8899).

1663037 is an equidigital number, since it uses as much as digits as its factorization.

1663037 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8898.

The product of its (nonzero) digits is 2268, while the sum is 26.

The square root of 1663037 is about 1289.5879186779. The cubic root of 1663037 is about 118.4769786799.

Adding to 1663037 its reverse (7303661), we get a palindrome (8966698).

The spelling of 1663037 in words is "one million, six hundred sixty-three thousand, thirty-seven".