471622861 has 4 divisors (see below), whose sum is σ = 471883392. Its totient is φ = 471362332.

The previous prime is 471622859. The next prime is 471622867. The reversal of 471622861 is 168226174.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 168226174 = 2 ⋅84113087.

It is a cyclic number.

It is not a de Polignac number, because 471622861 - 2¹ = 471622859 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 471622861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (471622867) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 127531 + ... + 131176.

It is an arithmetic number, because the mean of its divisors is an integer number (117970848).

Almost surely, 2^471622861 is an apocalyptic number.

It is an amenable number.

471622861 is a deficient number, since it is larger than the sum of its proper divisors (260531).

471622861 is a wasteful number, since it uses less digits than its factorization.

471622861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260530.

The product of its digits is 32256, while the sum is 37.

The square root of 471622861 is about 21716.8796331333. The cubic root of 471622861 is about 778.3918549273.

The spelling of 471622861 in words is "four hundred seventy-one million, six hundred twenty-two thousand, eight hundred sixty-one".