191679948 has 36 divisors (see below), whose sum is σ = 486100888. Its totient is φ = 63685440.

The previous prime is 191679941. The next prime is 191679949. The reversal of 191679948 is 849976191.

It is a tau number, because it is divible by the number of its divisors (36).

It is a junction number, because it is equal to n+sod(n) for n = 191679894 and 191679903.

It is not an unprimeable number, because it can be changed into a prime (191679941) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2763 + ... + 19773.

Almost surely, 2^191679948 is an apocalyptic number.

191679948 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

191679948 is an abundant number, since it is smaller than the sum of its proper divisors (294420940).

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

191679948 is a wasteful number, since it uses less digits than its factorization.

191679948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17334 (or 17329 counting only the distinct ones).

The product of its digits is 979776, while the sum is 54.

The square root of 191679948 is about 13844.8527619473. The cubic root of 191679948 is about 576.5790978587.

The spelling of 191679948 in words is "one hundred ninety-one million, six hundred seventy-nine thousand, nine hundred forty-eight".