8690021200 has 60 divisors (see below), whose sum is σ = 23860323040. Its totient is φ = 2979434880.

The previous prime is 8690021173. The next prime is 8690021201. The reversal of 8690021200 is 21200968.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8690021201) 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, 1548990 + ... + 1554589.

Almost surely, 2^8690021200 is an apocalyptic number.

8690021200 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

8690021200 is an abundant number, since it is smaller than the sum of its proper divisors (15170301840).

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

8690021200 is a wasteful number, since it uses less digits than its factorization.

8690021200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3103604 (or 3103593 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 8690021200 is about 93220.2832005996. The cubic root of 8690021200 is about 2055.9234744186.

The spelling of 8690021200 in words is "eight billion, six hundred ninety million, twenty-one thousand, two hundred".