1984636231 has 2 divisors, whose sum is σ = 1984636232. Its totient is φ = 1984636230.

The previous prime is 1984636211. The next prime is 1984636243. The reversal of 1984636231 is 1326364891.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1984636231 - 2²⁵ = 1951081799 is a prime.

It is a super-2 number, since 2×1984636231² = 7877561938795770722, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1984636211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 992318115 + 992318116.

It is an arithmetic number, because the mean of its divisors is an integer number (992318116).

Almost surely, 2^1984636231 is an apocalyptic number.

1984636231 is a deficient number, since it is larger than the sum of its proper divisors (1).

1984636231 is an equidigital number, since it uses as much as digits as its factorization.

1984636231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 186624, while the sum is 43.

The square root of 1984636231 is about 44549.2562339710. The cubic root of 1984636231 is about 1256.6865640580.

The spelling of 1984636231 in words is "one billion, nine hundred eighty-four million, six hundred thirty-six thousand, two hundred thirty-one".