78429753 has 6 divisors (see below), whose sum is σ = 113287434. Its totient is φ = 52286496.

The previous prime is 78429733. The next prime is 78429763. The reversal of 78429753 is 35792487.

It can be written as a sum of positive squares in only one way, i.e., 57881664 + 20548089 = 7608^2 + 4533^2 .

It is not a de Polignac number, because 78429753 - 2⁸ = 78429497 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 78429699 and 78429708.

It is not an unprimeable number, because it can be changed into a prime (78429733) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4357200 + ... + 4357217.

It is an arithmetic number, because the mean of its divisors is an integer number (18881239).

Almost surely, 2^78429753 is an apocalyptic number.

It is an amenable number.

78429753 is a deficient number, since it is larger than the sum of its proper divisors (34857681).

78429753 is a wasteful number, since it uses less digits than its factorization.

78429753 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8714423 (or 8714420 counting only the distinct ones).

The product of its digits is 423360, while the sum is 45.

The square root of 78429753 is about 8856.0574185130. The cubic root of 78429753 is about 428.0491271090.

The spelling of 78429753 in words is "seventy-eight million, four hundred twenty-nine thousand, seven hundred fifty-three".