8720867432 has 8 divisors (see below), whose sum is σ = 16351626450. Its totient is φ = 4360433712.

The previous prime is 8720867413. The next prime is 8720867489. The reversal of 8720867432 is 2347680278.

It can be written as a sum of positive squares in only one way, i.e., 6719736676 + 2001130756 = 81974^2 + 44734^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 545054207 + ... + 545054222.

Almost surely, 2^8720867432 is an apocalyptic number.

It is an amenable number.

8720867432 is a deficient number, since it is larger than the sum of its proper divisors (7630759018).

8720867432 is a wasteful number, since it uses less digits than its factorization.

8720867432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1090108435 (or 1090108431 counting only the distinct ones).

The product of its (nonzero) digits is 903168, while the sum is 47.

The square root of 8720867432 is about 93385.5847119886. The cubic root of 8720867432 is about 2058.3531809648.

The spelling of 8720867432 in words is "eight billion, seven hundred twenty million, eight hundred sixty-seven thousand, four hundred thirty-two".