68203631 has 2 divisors, whose sum is σ = 68203632. Its totient is φ = 68203630.

The previous prime is 68203607. The next prime is 68203651. The reversal of 68203631 is 13630286.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68203631 is a prime.

It is a super-2 number, since 2×68203631² = 9303470563168322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 68203594 and 68203603.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (68203651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34101815 + 34101816.

It is an arithmetic number, because the mean of its divisors is an integer number (34101816).

Almost surely, 2^68203631 is an apocalyptic number.

68203631 is a deficient number, since it is larger than the sum of its proper divisors (1).

68203631 is an equidigital number, since it uses as much as digits as its factorization.

68203631 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 68203631 is about 8258.5489645579. The cubic root of 68203631 is about 408.5725313875.

The spelling of 68203631 in words is "sixty-eight million, two hundred three thousand, six hundred thirty-one".