1675631 has 2 divisors, whose sum is σ = 1675632. Its totient is φ = 1675630.

The previous prime is 1675627. The next prime is 1675637. The reversal of 1675631 is 1365761.

It is a weak prime.

It is an emirp because it is prime and its reverse (1365761) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1675631 - 2² = 1675627 is a prime.

It is a super-2 number, since 2×1675631² = 5615478496322, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 1675594 and 1675603.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1675637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 837815 + 837816.

It is an arithmetic number, because the mean of its divisors is an integer number (837816).

2^1675631 is an apocalyptic number.

1675631 is a deficient number, since it is larger than the sum of its proper divisors (1).

1675631 is an equidigital number, since it uses as much as digits as its factorization.

1675631 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3780, while the sum is 29.

The square root of 1675631 is about 1294.4616641678. The cubic root of 1675631 is about 118.7752980267.

The spelling of 1675631 in words is "one million, six hundred seventy-five thousand, six hundred thirty-one".