469986661 has 8 divisors (see below), whose sum is σ = 478699200. Its totient is φ = 461350560.

The previous prime is 469986659. The next prime is 469986667. The reversal of 469986661 is 166689964.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 469986661 - 2¹ = 469986659 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (469986667) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6625 + ... + 31366.

It is an arithmetic number, because the mean of its divisors is an integer number (59837400).

Almost surely, 2^469986661 is an apocalyptic number.

It is an amenable number.

469986661 is a deficient number, since it is larger than the sum of its proper divisors (8712539).

469986661 is a wasteful number, since it uses less digits than its factorization.

469986661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38219.

The product of its digits is 3359232, while the sum is 55.

The square root of 469986661 is about 21679.1757454014. The cubic root of 469986661 is about 777.4906543129.

The spelling of 469986661 in words is "four hundred sixty-nine million, nine hundred eighty-six thousand, six hundred sixty-one".