987653155 has 16 divisors (see below), whose sum is σ = 1250899200. Its totient is φ = 746534880.

The previous prime is 987653129. The next prime is 987653201. The reversal of 987653155 is 551356789.

It is not a de Polignac number, because 987653155 - 2¹¹ = 987651107 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 987653099 and 987653108.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22290 + ... + 49720.

It is an arithmetic number, because the mean of its divisors is an integer number (78181200).

Almost surely, 2^987653155 is an apocalyptic number.

987653155 is a gapful number since it is divisible by the number (95) formed by its first and last digit.

987653155 is a deficient number, since it is larger than the sum of its proper divisors (263246045).

987653155 is a wasteful number, since it uses less digits than its factorization.

987653155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27834.

The product of its digits is 1134000, while the sum is 49.

The square root of 987653155 is about 31426.9495019800. The cubic root of 987653155 is about 995.8673295623.

The spelling of 987653155 in words is "nine hundred eighty-seven million, six hundred fifty-three thousand, one hundred fifty-five".