104619978 has 32 divisors (see below), whose sum is σ = 239992320. Its totient is φ = 33747840.

The previous prime is 104619973. The next prime is 104620001. The reversal of 104619978 is 879916401.

It is a happy number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (104619971) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29575 + ... + 32922.

It is an arithmetic number, because the mean of its divisors is an integer number (7499760).

Almost surely, 2^104619978 is an apocalyptic number.

104619978 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

104619978 is an abundant number, since it is smaller than the sum of its proper divisors (135372342).

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

104619978 is a wasteful number, since it uses less digits than its factorization.

104619978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62539 (or 62533 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 45.

The square root of 104619978 is about 10228.3907825229. The cubic root of 104619978 is about 471.1995584245.

The spelling of 104619978 in words is "one hundred four million, six hundred nineteen thousand, nine hundred seventy-eight".