8632040647 has 4 divisors (see below), whose sum is σ = 8633414736. Its totient is φ = 8630666560.

The previous prime is 8632040611. The next prime is 8632040663. The reversal of 8632040647 is 7460402368.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 8632040647 - 2⁷ = 8632040519 is a prime.

It is a super-5 number, since 5×8632040647⁵ (a number of 51 digits) contains 55555 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8632040947) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 677578 + ... + 690199.

It is an arithmetic number, because the mean of its divisors is an integer number (2158353684).

Almost surely, 2^8632040647 is an apocalyptic number.

8632040647 is a deficient number, since it is larger than the sum of its proper divisors (1374089).

8632040647 is a wasteful number, since it uses less digits than its factorization.

8632040647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1374088.

The product of its (nonzero) digits is 193536, while the sum is 40.

The square root of 8632040647 is about 92908.7759417807. The cubic root of 8632040647 is about 2051.3408358413.

The spelling of 8632040647 in words is "eight billion, six hundred thirty-two million, forty thousand, six hundred forty-seven".