821725014 has 32 divisors (see below), whose sum is σ = 1795332096. Its totient is φ = 248663520.

The previous prime is 821725013. The next prime is 821725033. The reversal of 821725014 is 410527128.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (821725013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41739 + ... + 58185.

It is an arithmetic number, because the mean of its divisors is an integer number (56104128).

Almost surely, 2^821725014 is an apocalyptic number.

821725014 is an abundant number, since it is smaller than the sum of its proper divisors (973607082).

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

821725014 is a wasteful number, since it uses less digits than its factorization.

821725014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17220.

The product of its (nonzero) digits is 4480, while the sum is 30.

The square root of 821725014 is about 28665.7463534442. The cubic root of 821725014 is about 936.6460425010.

The spelling of 821725014 in words is "eight hundred twenty-one million, seven hundred twenty-five thousand, fourteen".