8673646401 has 32 divisors (see below), whose sum is σ = 15027077120. Its totient is φ = 4841100432.

The previous prime is 8673646393. The next prime is 8673646411. The reversal of 8673646401 is 1046463768.

It is a happy number.

It is not a de Polignac number, because 8673646401 - 2³ = 8673646393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8673646411) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 525505 + ... + 541758.

It is an arithmetic number, because the mean of its divisors is an integer number (469596160).

Almost surely, 2^8673646401 is an apocalyptic number.

It is an amenable number.

8673646401 is a deficient number, since it is larger than the sum of its proper divisors (6353430719).

8673646401 is a wasteful number, since it uses less digits than its factorization.

8673646401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1067322 (or 1067316 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 45.

The square root of 8673646401 is about 93132.4132673475. The cubic root of 8673646401 is about 2054.6313217880.

The spelling of 8673646401 in words is "eight billion, six hundred seventy-three million, six hundred forty-six thousand, four hundred one".