854291661 has 8 divisors (see below), whose sum is σ = 1199005920. Its totient is φ = 539552592.

The previous prime is 854291611. The next prime is 854291681. The reversal of 854291661 is 166192458.

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

It is not a de Polignac number, because 854291661 - 2⁶ = 854291597 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (854291611) 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, 7493730 + ... + 7493843.

It is an arithmetic number, because the mean of its divisors is an integer number (149875740).

Almost surely, 2^854291661 is an apocalyptic number.

It is an amenable number.

854291661 is a deficient number, since it is larger than the sum of its proper divisors (344714259).

854291661 is a wasteful number, since it uses less digits than its factorization.

854291661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14987595.

The product of its digits is 103680, while the sum is 42.

The square root of 854291661 is about 29228.2681833871. The cubic root of 854291661 is about 948.8598180757.

The spelling of 854291661 in words is "eight hundred fifty-four million, two hundred ninety-one thousand, six hundred sixty-one".