78954020 has 24 divisors (see below), whose sum is σ = 169661184. Its totient is φ = 30846816.

The previous prime is 78954019. The next prime is 78954053. The reversal of 78954020 is 2045987.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45044 + ... + 46763.

It is an arithmetic number, because the mean of its divisors is an integer number (7069216).

Almost surely, 2^78954020 is an apocalyptic number.

It is an amenable number.

78954020 is an abundant number, since it is smaller than the sum of its proper divisors (90707164).

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

78954020 is a wasteful number, since it uses less digits than its factorization.

78954020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91859 (or 91857 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 35.

The square root of 78954020 is about 8885.6074637585. The cubic root of 78954020 is about 429.0007806217. Note that the first 3 decimals are identical.

The spelling of 78954020 in words is "seventy-eight million, nine hundred fifty-four thousand, twenty".