78023241 has 6 divisors (see below), whose sum is σ = 112700250. Its totient is φ = 52015488.

The previous prime is 78023201. The next prime is 78023279. The reversal of 78023241 is 14232087.

It can be written as a sum of positive squares in only one way, i.e., 47817225 + 30206016 = 6915^2 + 5496^2 .

It is not a de Polignac number, because 78023241 - 2⁹ = 78022729 is a prime.

It is a super-2 number, since 2×78023241² = 12175252272288162, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (78023201) 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 5 ways as a sum of consecutive naturals, for example, 4334616 + ... + 4334633.

It is an arithmetic number, because the mean of its divisors is an integer number (18783375).

Almost surely, 2^78023241 is an apocalyptic number.

It is an amenable number.

78023241 is a deficient number, since it is larger than the sum of its proper divisors (34677009).

78023241 is a wasteful number, since it uses less digits than its factorization.

78023241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8669255 (or 8669252 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 78023241 is about 8833.0765308583. The cubic root of 78023241 is about 427.3083002208.

The spelling of 78023241 in words is "seventy-eight million, twenty-three thousand, two hundred forty-one".