78674241 has 4 divisors (see below), whose sum is σ = 104898992. Its totient is φ = 52449492.

The previous prime is 78674227. The next prime is 78674243. The reversal of 78674241 is 14247687.

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, and also an emirpimes, since its reverse is a distinct semiprime: 14247687 = 3 ⋅4749229.

It is not a de Polignac number, because 78674241 - 2²⁶ = 11565377 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 78674241.

It is not an unprimeable number, because it can be changed into a prime (78674243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13112371 + ... + 13112376.

It is an arithmetic number, because the mean of its divisors is an integer number (26224748).

Almost surely, 2^78674241 is an apocalyptic number.

It is an amenable number.

78674241 is a deficient number, since it is larger than the sum of its proper divisors (26224751).

78674241 is a wasteful number, since it uses less digits than its factorization.

78674241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26224750.

The product of its digits is 75264, while the sum is 39.

The square root of 78674241 is about 8869.8501114731. The cubic root of 78674241 is about 428.4934496379.

The spelling of 78674241 in words is "seventy-eight million, six hundred seventy-four thousand, two hundred forty-one".