1187479716 has 48 divisors (see below), whose sum is σ = 2945061504. Its totient is φ = 371109376.

The previous prime is 1187479691. The next prime is 1187479717. The reversal of 1187479716 is 6179747811.

It is a super-2 number, since 2×1187479716² = 2820216151822881312, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is not an unprimeable number, because it can be changed into a prime (1187479717) 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, 42586 + ... + 64718.

It is an arithmetic number, because the mean of its divisors is an integer number (61355448).

Almost surely, 2^1187479716 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1187479716, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1472530752).

1187479716 is an abundant number, since it is smaller than the sum of its proper divisors (1757581788).

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

1187479716 is a wasteful number, since it uses less digits than its factorization.

1187479716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22420 (or 22418 counting only the distinct ones).

The product of its digits is 592704, while the sum is 51.

The square root of 1187479716 is about 34459.8275677636. The cubic root of 1187479716 is about 1058.9498665946.

The spelling of 1187479716 in words is "one billion, one hundred eighty-seven million, four hundred seventy-nine thousand, seven hundred sixteen".