987654040 has 32 divisors (see below), whose sum is σ = 2318842080. Its totient is φ = 377884672.

The previous prime is 987653999. The next prime is 987654047. The reversal of 987654040 is 40456789.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (987654047) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 535849 + ... + 537688.

It is an arithmetic number, because the mean of its divisors is an integer number (72463815).

Almost surely, 2^987654040 is an apocalyptic number.

It is an amenable number.

987654040 is an abundant number, since it is smaller than the sum of its proper divisors (1331188040).

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

987654040 is a wasteful number, since it uses less digits than its factorization.

987654040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1073571 (or 1073567 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 43.

The square root of 987654040 is about 31426.9635822489. The cubic root of 987654040 is about 995.8676270157.

The spelling of 987654040 in words is "nine hundred eighty-seven million, six hundred fifty-four thousand, forty".