873978525 has 48 divisors (see below), whose sum is σ = 1834902400. Its totient is φ = 399530880.

The previous prime is 873978493. The next prime is 873978529. The reversal of 873978525 is 525879378.

873978525 is a `hidden beast` number, since 87 + 39 + 7 + 8 + 525 = 666.

It is not a de Polignac number, because 873978525 - 2⁵ = 873978493 is a prime.

It is a super-2 number, since 2×873978525² = 1527676924322351250, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (873978529) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 87760 + ... + 97209.

Almost surely, 2^873978525 is an apocalyptic number.

It is an amenable number.

873978525 is an abundant number, since it is smaller than the sum of its proper divisors (960923875).

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

873978525 is a wasteful number, since it uses less digits than its factorization.

873978525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184995 (or 184984 counting only the distinct ones).

The product of its digits is 4233600, while the sum is 54.

The square root of 873978525 is about 29563.1277946025. The cubic root of 873978525 is about 956.0932538158.

It can be divided in two parts, 873978 and 525, that added together give a triangular number (874503 = T₁₃₂₂).

The spelling of 873978525 in words is "eight hundred seventy-three million, nine hundred seventy-eight thousand, five hundred twenty-five".