469889557 has 2 divisors, whose sum is σ = 469889558. Its totient is φ = 469889556.

The previous prime is 469889549. The next prime is 469889569. The reversal of 469889557 is 755988964.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 307862116 + 162027441 = 17546^2 + 12729^2 .

It is a cyclic number.

It is not a de Polignac number, because 469889557 - 2³ = 469889549 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 469889495 and 469889504.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (469880557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 234944778 + 234944779.

It is an arithmetic number, because the mean of its divisors is an integer number (234944779).

Almost surely, 2^469889557 is an apocalyptic number.

It is an amenable number.

469889557 is a deficient number, since it is larger than the sum of its proper divisors (1).

469889557 is an equidigital number, since it uses as much as digits as its factorization.

469889557 is an evil number, because the sum of its binary digits is even.

The product of its digits is 21772800, while the sum is 61.

The square root of 469889557 is about 21676.9360611688. The cubic root of 469889557 is about 777.4371048126.

The spelling of 469889557 in words is "four hundred sixty-nine million, eight hundred eighty-nine thousand, five hundred fifty-seven".