78044741 has 2 divisors, whose sum is σ = 78044742. Its totient is φ = 78044740.

The previous prime is 78044737. The next prime is 78044767. The reversal of 78044741 is 14744087.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 60996100 + 17048641 = 7810^2 + 4129^2 .

It is a cyclic number.

It is not a de Polignac number, because 78044741 - 2² = 78044737 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (78041741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39022370 + 39022371.

It is an arithmetic number, because the mean of its divisors is an integer number (39022371).

Almost surely, 2^78044741 is an apocalyptic number.

It is an amenable number.

78044741 is a deficient number, since it is larger than the sum of its proper divisors (1).

78044741 is an equidigital number, since it uses as much as digits as its factorization.

78044741 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 25088, while the sum is 35.

The square root of 78044741 is about 8834.2934635431. The cubic root of 78044741 is about 427.3475461541.

The spelling of 78044741 in words is "seventy-eight million, forty-four thousand, seven hundred forty-one".