4197631 has 2 divisors, whose sum is σ = 4197632. Its totient is φ = 4197630.

The previous prime is 4197629. The next prime is 4197647. The reversal of 4197631 is 1367914.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 4197631 - 2¹ = 4197629 is a prime.

It is a super-2 number, since 2×4197631² = 35240212024322, which contains 22 as substring.

Together with 4197629, it forms a pair of twin primes.

It is equal to p₂₉₆₁₆₇ and since 4197631 and 296167 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 4197593 and 4197602.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4197601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2098815 + 2098816.

It is an arithmetic number, because the mean of its divisors is an integer number (2098816).

Almost surely, 2^4197631 is an apocalyptic number.

4197631 is a deficient number, since it is larger than the sum of its proper divisors (1).

4197631 is an equidigital number, since it uses as much as digits as its factorization.

4197631 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4536, while the sum is 31.

The square root of 4197631 is about 2048.8120948491. The cubic root of 4197631 is about 161.3125238777.

The spelling of 4197631 in words is "four million, one hundred ninety-seven thousand, six hundred thirty-one".