471220687 has 8 divisors (see below), whose sum is σ = 541652256. Its totient is φ = 401567712.

The previous prime is 471220663. The next prime is 471220741. The reversal of 471220687 is 786022174.

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

It is not a de Polignac number, because 471220687 - 2²³ = 462832079 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 (471220487) 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, 193348 + ... + 195769.

It is an arithmetic number, because the mean of its divisors is an integer number (67706532).

Almost surely, 2^471220687 is an apocalyptic number.

471220687 is a deficient number, since it is larger than the sum of its proper divisors (70431569).

471220687 is a wasteful number, since it uses less digits than its factorization.

471220687 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 389297.

The product of its (nonzero) digits is 37632, while the sum is 37.

The square root of 471220687 is about 21707.6181788790. The cubic root of 471220687 is about 778.1705354384.

The spelling of 471220687 in words is "four hundred seventy-one million, two hundred twenty thousand, six hundred eighty-seven".