8696921040 has 240 divisors, whose sum is σ = 30967113216. Its totient is φ = 2183500800.

The previous prime is 8696921033. The next prime is 8696921059. The reversal of 8696921040 is 401296968.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (240).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 820575 + ... + 831105.

Almost surely, 2^8696921040 is an apocalyptic number.

8696921040 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8696921040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15483556608).

8696921040 is an abundant number, since it is smaller than the sum of its proper divisors (22270192176).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8696921040 is a wasteful number, since it uses less digits than its factorization.

8696921040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10618 (or 10609 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 45.

The square root of 8696921040 is about 93257.2841122880. The cubic root of 8696921040 is about 2056.4674619776.

The spelling of 8696921040 in words is "eight billion, six hundred ninety-six million, nine hundred twenty-one thousand, forty".