1173487216 has 20 divisors (see below), whose sum is σ = 2480325624. Its totient is φ = 533403200.

The previous prime is 1173487213. The next prime is 1173487247. The reversal of 1173487216 is 6127843711.

It is a happy number.

It is a super-2 number, since 2×1173487216² = 2754144492230861312, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1173487213) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3333595 + ... + 3333946.

Almost surely, 2^1173487216 is an apocalyptic number.

1173487216 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1173487216 is an abundant number, since it is smaller than the sum of its proper divisors (1306838408).

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

1173487216 is a wasteful number, since it uses less digits than its factorization.

1173487216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6667560 (or 6667554 counting only the distinct ones).

The product of its digits is 56448, while the sum is 40.

The square root of 1173487216 is about 34256.1996724680. The cubic root of 1173487216 is about 1054.7740929715.

The spelling of 1173487216 in words is "one billion, one hundred seventy-three million, four hundred eighty-seven thousand, two hundred sixteen".