234721625 has 8 divisors (see below), whose sum is σ = 292932744. Its totient is φ = 187777200.

The previous prime is 234721609. The next prime is 234721631. The reversal of 234721625 is 526127432.

It can be written as a sum of positive squares in 4 ways, for example, as 10291264 + 224430361 = 3208^2 + 14981^2 .

It is not a de Polignac number, because 234721625 - 2⁴ = 234721609 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 234721591 and 234721600.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 938762 + ... + 939011.

It is an arithmetic number, because the mean of its divisors is an integer number (36616593).

Almost surely, 2^234721625 is an apocalyptic number.

234721625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

234721625 is a deficient number, since it is larger than the sum of its proper divisors (58211119).

234721625 is an equidigital number, since it uses as much as digits as its factorization.

234721625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1877788 (or 1877778 counting only the distinct ones).

The product of its digits is 20160, while the sum is 32.

The square root of 234721625 is about 15320.6274349323. The cubic root of 234721625 is about 616.8568158035.

The spelling of 234721625 in words is "two hundred thirty-four million, seven hundred twenty-one thousand, six hundred twenty-five".