214728825 has 24 divisors (see below), whose sum is σ = 355557600. Its totient is φ = 114348160.

The previous prime is 214728821. The next prime is 214728869. The reversal of 214728825 is 528827412.

It is not a de Polignac number, because 214728825 - 2² = 214728821 is a prime.

It is a super-2 number, since 2×214728825² = 92216936571761250, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (214728821) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 58906 + ... + 62444.

It is an arithmetic number, because the mean of its divisors is an integer number (14814900).

Almost surely, 2^214728825 is an apocalyptic number.

214728825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

214728825 is a deficient number, since it is larger than the sum of its proper divisors (140828775).

214728825 is a wasteful number, since it uses less digits than its factorization.

214728825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4361 (or 4356 counting only the distinct ones).

The product of its digits is 71680, while the sum is 39.

The square root of 214728825 is about 14653.6283902657. The cubic root of 214728825 is about 598.8206695962.

The spelling of 214728825 in words is "two hundred fourteen million, seven hundred twenty-eight thousand, eight hundred twenty-five".