1187479746 has 48 divisors (see below), whose sum is σ = 2711404800. Its totient is φ = 374562144.

The previous prime is 1187479717. The next prime is 1187479747. The reversal of 1187479746 is 6479747811.

It is a happy number.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 1187479692 and 1187479701.

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 23 ways as a sum of consecutive naturals, for example, 435375 + ... + 438093.

It is an arithmetic number, because the mean of its divisors is an integer number (56487600).

Almost surely, 2^1187479746 is an apocalyptic number.

1187479746 is an abundant number, since it is smaller than the sum of its proper divisors (1523925054).

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

1187479746 is a wasteful number, since it uses less digits than its factorization.

1187479746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4023 (or 4020 counting only the distinct ones).

The product of its digits is 2370816, while the sum is 54.

The square root of 1187479746 is about 34459.8280030531. The cubic root of 1187479746 is about 1058.9498755122.

The spelling of 1187479746 in words is "one billion, one hundred eighty-seven million, four hundred seventy-nine thousand, seven hundred forty-six".