4351631 has 2 divisors, whose sum is σ = 4351632. Its totient is φ = 4351630.

The previous prime is 4351621. The next prime is 4351637. The reversal of 4351631 is 1361534.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 4351631 - 2²² = 157327 is a prime.

It is a super-2 number, since 2×4351631² = 37873384720322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 4351597 and 4351606.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4351637) 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, 2175815 + 2175816.

It is an arithmetic number, because the mean of its divisors is an integer number (2175816).

Almost surely, 2^4351631 is an apocalyptic number.

4351631 is a deficient number, since it is larger than the sum of its proper divisors (1).

4351631 is an equidigital number, since it uses as much as digits as its factorization.

4351631 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1080, while the sum is 23.

The square root of 4351631 is about 2086.0563271398. The cubic root of 4351631 is about 163.2615895752.

The spelling of 4351631 in words is "four million, three hundred fifty-one thousand, six hundred thirty-one".