78650241 has 4 divisors (see below), whose sum is σ = 104866992. Its totient is φ = 52433492.

The previous prime is 78650227. The next prime is 78650261. The reversal of 78650241 is 14205687.

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: 14205687 = 3 ⋅4735229.

It is a cyclic number.

It is not a de Polignac number, because 78650241 - 2⁷ = 78650113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (78650261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13108371 + ... + 13108376.

It is an arithmetic number, because the mean of its divisors is an integer number (26216748).

Almost surely, 2^78650241 is an apocalyptic number.

It is an amenable number.

78650241 is a deficient number, since it is larger than the sum of its proper divisors (26216751).

78650241 is a wasteful number, since it uses less digits than its factorization.

78650241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26216750.

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 78650241 is about 8868.4971105594. The cubic root of 78650241 is about 428.4498737968.

The spelling of 78650241 in words is "seventy-eight million, six hundred fifty thousand, two hundred forty-one".