78629741 has 4 divisors (see below), whose sum is σ = 78648000. Its totient is φ = 78611484.

The previous prime is 78629723. The next prime is 78629753. The reversal of 78629741 is 14792687.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 78629741 - 2¹⁴ = 78613357 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 78629692 and 78629701.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78629791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1310 + ... + 12608.

It is an arithmetic number, because the mean of its divisors is an integer number (19662000).

Almost surely, 2^78629741 is an apocalyptic number.

It is an amenable number.

78629741 is a deficient number, since it is larger than the sum of its proper divisors (18259).

78629741 is a wasteful number, since it uses less digits than its factorization.

78629741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18258.

The product of its digits is 169344, while the sum is 44.

The square root of 78629741 is about 8867.3412587991. The cubic root of 78629741 is about 428.4126457454.

The spelling of 78629741 in words is "seventy-eight million, six hundred twenty-nine thousand, seven hundred forty-one".