8621003400 has 48 divisors (see below), whose sum is σ = 26725112400. Its totient is φ = 2298934080.

The previous prime is 8621003381. The next prime is 8621003429. The reversal of 8621003400 is 43001268.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7183570 + ... + 7184769.

It is an arithmetic number, because the mean of its divisors is an integer number (556773175).

Almost surely, 2^8621003400 is an apocalyptic number.

It is an amenable number.

8621003400 is an abundant number, since it is smaller than the sum of its proper divisors (18104109000).

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

8621003400 is a wasteful number, since it uses less digits than its factorization.

8621003400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14368358 (or 14368349 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 8621003400 is about 92849.3586407574. The cubic root of 8621003400 is about 2050.4661561368.

Adding to 8621003400 its reverse (43001268), we get a palindrome (8664004668).

The spelling of 8621003400 in words is "eight billion, six hundred twenty-one million, three thousand, four hundred".