119643978 has 8 divisors (see below), whose sum is σ = 239287968. Its totient is φ = 39881324.

The previous prime is 119643947. The next prime is 119643989. The reversal of 119643978 is 879346911.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

119643978 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9970326 + ... + 9970337.

It is an arithmetic number, because the mean of its divisors is an integer number (29910996).

Almost surely, 2^119643978 is an apocalyptic number.

119643978 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

119643978 is a wasteful number, since it uses less digits than its factorization.

119643978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19940668.

The product of its digits is 326592, while the sum is 48.

The square root of 119643978 is about 10938.1889725859. The cubic root of 119643978 is about 492.7541395812.

The spelling of 119643978 in words is "one hundred nineteen million, six hundred forty-three thousand, nine hundred seventy-eight".