78054353 has 8 divisors (see below), whose sum is σ = 84289128. Its totient is φ = 71852544.

The previous prime is 78054329. The next prime is 78054359. The reversal of 78054353 is 35345087.

It can be written as a sum of positive squares in 4 ways, for example, as 5071504 + 72982849 = 2252^2 + 8543^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 78054353 - 2⁶ = 78054289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78054359) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3200 + ... + 12897.

It is an arithmetic number, because the mean of its divisors is an integer number (10536141).

Almost surely, 2^78054353 is an apocalyptic number.

It is an amenable number.

78054353 is a deficient number, since it is larger than the sum of its proper divisors (6234775).

78054353 is a wasteful number, since it uses less digits than its factorization.

78054353 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16483.

The product of its (nonzero) digits is 50400, while the sum is 35.

The square root of 78054353 is about 8834.8374631342. The cubic root of 78054353 is about 427.3650894928.

The spelling of 78054353 in words is "seventy-eight million, fifty-four thousand, three hundred fifty-three".