1084721625 has 192 divisors, whose sum is σ = 2270451456. Its totient is φ = 513216000.

The previous prime is 1084721623. The next prime is 1084721629. The reversal of 1084721625 is 5261274801.

1084721625 is a `hidden beast` number, since 1 + 0 + 8 + 4 + 7 + 21 + 625 = 666.

It is not a de Polignac number, because 1084721625 - 2¹ = 1084721623 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1084721625.

It is not an unprimeable number, because it can be changed into a prime (1084721621) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 16189842 + ... + 16189908.

It is an arithmetic number, because the mean of its divisors is an integer number (11825268).

Almost surely, 2^1084721625 is an apocalyptic number.

1084721625 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1084721625 is an abundant number, since it is smaller than the sum of its proper divisors (1185729831).

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

1084721625 is an equidigital number, since it uses as much as digits as its factorization.

1084721625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151 (or 129 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The square root of 1084721625 is about 32935.1123423012. The cubic root of 1084721625 is about 1027.4785546166.

The spelling of 1084721625 in words is "one billion, eighty-four million, seven hundred twenty-one thousand, six hundred twenty-five".