8671204477 has 12 divisors (see below), whose sum is σ = 9855578460. Its totient is φ = 7582911552.

The previous prime is 8671204471. The next prime is 8671204483. The reversal of 8671204477 is 7744021768.

It is an interprime number because it is at equal distance from previous prime (8671204471) and next prime (8671204483).

It can be written as a sum of positive squares in 2 ways, for example, as 5348143161 + 3323061316 = 73131^2 + 57646^2 .

It is a de Polignac number, because none of the positive numbers 2^k-8671204477 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8671204471) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 919152 + ... + 928537.

It is an arithmetic number, because the mean of its divisors is an integer number (821298205).

Almost surely, 2^8671204477 is an apocalyptic number.

It is an amenable number.

8671204477 is a deficient number, since it is larger than the sum of its proper divisors (1184373983).

8671204477 is a wasteful number, since it uses less digits than its factorization.

8671204477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1847740 (or 1847721 counting only the distinct ones).

The product of its (nonzero) digits is 526848, while the sum is 46.

The square root of 8671204477 is about 93119.3023867769. The cubic root of 8671204477 is about 2054.4384876857.

The spelling of 8671204477 in words is "eight billion, six hundred seventy-one million, two hundred four thousand, four hundred seventy-seven".