286401631 has 2 divisors, whose sum is σ = 286401632. Its totient is φ = 286401630.

The previous prime is 286401607. The next prime is 286401641. The reversal of 286401631 is 136104682.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 286401631 - 2¹³ = 286393439 is a prime.

It is a super-2 number, since 2×286401631² = 164051788478920322, which contains 22 as substring.

It is a plaindrome in base 16.

It is a junction number, because it is equal to n+sod(n) for n = 286401593 and 286401602.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (286401641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 143200815 + 143200816.

It is an arithmetic number, because the mean of its divisors is an integer number (143200816).

Almost surely, 2^286401631 is an apocalyptic number.

286401631 is a deficient number, since it is larger than the sum of its proper divisors (1).

286401631 is an equidigital number, since it uses as much as digits as its factorization.

286401631 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 31.

The square root of 286401631 is about 16923.4048288162. The cubic root of 286401631 is about 659.1614933153.

The spelling of 286401631 in words is "two hundred eighty-six million, four hundred one thousand, six hundred thirty-one".