78334337 has 2 divisors, whose sum is σ = 78334338. Its totient is φ = 78334336.

The previous prime is 78334301. The next prime is 78334357. The reversal of 78334337 is 73343387.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 68574961 + 9759376 = 8281^2 + 3124^2 .

It is a cyclic number.

It is not a de Polignac number, because 78334337 - 2⁶ = 78334273 is a prime.

It is a super-2 number, since 2×78334337² = 12272536706459138, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 78334337.

It is not a weakly prime, because it can be changed into another prime (78334357) 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 as a sum of consecutive naturals, namely, 39167168 + 39167169.

It is an arithmetic number, because the mean of its divisors is an integer number (39167169).

Almost surely, 2^78334337 is an apocalyptic number.

It is an amenable number.

78334337 is a deficient number, since it is larger than the sum of its proper divisors (1).

78334337 is an equidigital number, since it uses as much as digits as its factorization.

78334337 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 127008, while the sum is 38.

The square root of 78334337 is about 8850.6687317965. The cubic root of 78334337 is about 427.8754714576.

The spelling of 78334337 in words is "seventy-eight million, three hundred thirty-four thousand, three hundred thirty-seven".