469985731 has 2 divisors, whose sum is σ = 469985732. Its totient is φ = 469985730.

The previous prime is 469985717. The next prime is 469985777. The reversal of 469985731 is 137589964.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 469985731 - 2⁷ = 469985603 is a prime.

It is a super-2 number, since 2×469985731² = 441773174687208722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (469985701) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 234992865 + 234992866.

It is an arithmetic number, because the mean of its divisors is an integer number (234992866).

Almost surely, 2^469985731 is an apocalyptic number.

469985731 is a deficient number, since it is larger than the sum of its proper divisors (1).

469985731 is an equidigital number, since it uses as much as digits as its factorization.

469985731 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1632960, while the sum is 52.

The square root of 469985731 is about 21679.1542962358. The cubic root of 469985731 is about 777.4901414851.

The spelling of 469985731 in words is "four hundred sixty-nine million, nine hundred eighty-five thousand, seven hundred thirty-one".