78742653 has 16 divisors (see below), whose sum is σ = 115021632. Its totient is φ = 47520000.

The previous prime is 78742633. The next prime is 78742679. The reversal of 78742653 is 35624787.

It is not a de Polignac number, because 78742653 - 2¹⁰ = 78741629 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78742633) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 3003 + ... + 12903.

It is an arithmetic number, because the mean of its divisors is an integer number (7188852).

Almost surely, 2^78742653 is an apocalyptic number.

It is an amenable number.

78742653 is a deficient number, since it is larger than the sum of its proper divisors (36278979).

78742653 is a wasteful number, since it uses less digits than its factorization.

78742653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10156.

The product of its digits is 282240, while the sum is 42.

The square root of 78742653 is about 8873.7057084400. The cubic root of 78742653 is about 428.6176139591.

The spelling of 78742653 in words is "seventy-eight million, seven hundred forty-two thousand, six hundred fifty-three".