863220471 has 16 divisors (see below), whose sum is σ = 1207225344. Its totient is φ = 548010144.

The previous prime is 863220469. The next prime is 863220493. The reversal of 863220471 is 174022368.

It is not a de Polignac number, because 863220471 - 2¹ = 863220469 is a prime.

It is a super-3 number, since 3×863220471³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (863220431) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 77515 + ... + 87948.

It is an arithmetic number, because the mean of its divisors is an integer number (75451584).

Almost surely, 2^863220471 is an apocalyptic number.

863220471 is a deficient number, since it is larger than the sum of its proper divisors (344004873).

863220471 is a wasteful number, since it uses less digits than its factorization.

863220471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165550.

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 863220471 is about 29380.6138635666. The cubic root of 863220471 is about 952.1541039842.

The spelling of 863220471 in words is "eight hundred sixty-three million, two hundred twenty thousand, four hundred seventy-one".