1174820887 has 16 divisors (see below), whose sum is σ = 1299672000. Its totient is φ = 1056287232.

The previous prime is 1174820873. The next prime is 1174820893. The reversal of 1174820887 is 7880284711.

It is a cyclic number.

It is not a de Polignac number, because 1174820887 - 2¹⁵ = 1174788119 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1174820837) 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, 425989 + ... + 428737.

It is an arithmetic number, because the mean of its divisors is an integer number (81229500).

Almost surely, 2^1174820887 is an apocalyptic number.

1174820887 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

1174820887 is a deficient number, since it is larger than the sum of its proper divisors (124851113).

1174820887 is a wasteful number, since it uses less digits than its factorization.

1174820887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3882.

The product of its (nonzero) digits is 200704, while the sum is 46.

The square root of 1174820887 is about 34275.6602708102. The cubic root of 1174820887 is about 1055.1735261090.

The spelling of 1174820887 in words is "one billion, one hundred seventy-four million, eight hundred twenty thousand, eight hundred eighty-seven".