987061825 has 6 divisors (see below), whose sum is σ = 1223956694. Its totient is φ = 789649440.

The previous prime is 987061807. The next prime is 987061843. The reversal of 987061825 is 528160789.

It is an interprime number because it is at equal distance from previous prime (987061807) and next prime (987061843).

It can be written as a sum of positive squares in 3 ways, for example, as 47761921 + 939299904 = 6911^2 + 30648^2 .

It is not a de Polignac number, because 987061825 - 2⁷ = 987061697 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 19741212 + ... + 19741261.

Almost surely, 2^987061825 is an apocalyptic number.

It is an amenable number.

987061825 is a deficient number, since it is larger than the sum of its proper divisors (236894869).

987061825 is a wasteful number, since it uses less digits than its factorization.

987061825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39482483 (or 39482478 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 46.

The square root of 987061825 is about 31417.5400851181. The cubic root of 987061825 is about 995.6685405473.

The spelling of 987061825 in words is "nine hundred eighty-seven million, sixty-one thousand, eight hundred twenty-five".