1187479748 has 24 divisors (see below), whose sum is σ = 2557649472. Its totient is φ = 469772064.

The previous prime is 1187479747. The next prime is 1187479753. The reversal of 1187479748 is 8479747811.

It is a junction number, because it is equal to n+sod(n) for n = 1187479693 and 1187479702.

It is not an unprimeable number, because it can be changed into a prime (1187479747) 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, 1630790 + ... + 1631517.

It is an arithmetic number, because the mean of its divisors is an integer number (106568728).

Almost surely, 2^1187479748 is an apocalyptic number.

It is an amenable number.

1187479748 is an abundant number, since it is smaller than the sum of its proper divisors (1370169724).

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

1187479748 is a wasteful number, since it uses less digits than its factorization.

1187479748 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3262331 (or 3262329 counting only the distinct ones).

The product of its digits is 3161088, while the sum is 56.

The square root of 1187479748 is about 34459.8280320724. The cubic root of 1187479748 is about 1058.9498761067.

The spelling of 1187479748 in words is "one billion, one hundred eighty-seven million, four hundred seventy-nine thousand, seven hundred forty-eight".