487069631 has 2 divisors, whose sum is σ = 487069632. Its totient is φ = 487069630.

The previous prime is 487069607. The next prime is 487069633. The reversal of 487069631 is 136960784.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-487069631 is a prime.

It is a super-2 number, since 2×487069631² = 474473650884952322, which contains 22 as substring.

Together with 487069633, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (487069633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 243534815 + 243534816.

It is an arithmetic number, because the mean of its divisors is an integer number (243534816).

Almost surely, 2^487069631 is an apocalyptic number.

487069631 is a deficient number, since it is larger than the sum of its proper divisors (1).

487069631 is an equidigital number, since it uses as much as digits as its factorization.

487069631 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 217728, while the sum is 44.

The square root of 487069631 is about 22069.6540752228. The cubic root of 487069631 is about 786.7987911477.

The spelling of 487069631 in words is "four hundred eighty-seven million, sixty-nine thousand, six hundred thirty-one".