1171689948 has 300 divisors, whose sum is σ = 3819461800. Its totient is φ = 310495680.

The previous prime is 1171689917. The next prime is 1171689949. The reversal of 1171689948 is 8499861711.

It is a Harshad number since it is a multiple of its sum of digits (54).

Its product of digits (870912) is a multiple of the sum of its prime divisors (48).

It is a junction number, because it is equal to n+sod(n) for n = 1171689894 and 1171689903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1171689949) by changing a digit.

It is a polite number, since it can be written in 99 ways as a sum of consecutive naturals, for example, 61667883 + ... + 61667901.

Almost surely, 2^1171689948 is an apocalyptic number.

1171689948 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1171689948, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1909730900).

1171689948 is an abundant number, since it is smaller than the sum of its proper divisors (2647771852).

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

1171689948 is a wasteful number, since it uses less digits than its factorization.

1171689948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92 (or 48 counting only the distinct ones).

The product of its digits is 870912, while the sum is 54.

The square root of 1171689948 is about 34229.9568799027. The cubic root of 1171689948 is about 1054.2353339853.

The spelling of 1171689948 in words is "one billion, one hundred seventy-one million, six hundred eighty-nine thousand, nine hundred forty-eight".