79003681 has 2 divisors, whose sum is σ = 79003682. Its totient is φ = 79003680.

The previous prime is 79003669. The next prime is 79003693. The reversal of 79003681 is 18630097.

It is a balanced prime because it is at equal distance from previous prime (79003669) and next prime (79003693).

It can be written as a sum of positive squares in only one way, i.e., 73805281 + 5198400 = 8591^2 + 2280^2 .

It is a cyclic number.

It is not a de Polignac number, because 79003681 - 2⁵ = 79003649 is a prime.

It is a super-4 number, since 4×79003681⁴ (a number of 33 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (79003651) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39501840 + 39501841.

It is an arithmetic number, because the mean of its divisors is an integer number (39501841).

Almost surely, 2^79003681 is an apocalyptic number.

It is an amenable number.

79003681 is a deficient number, since it is larger than the sum of its proper divisors (1).

79003681 is an equidigital number, since it uses as much as digits as its factorization.

79003681 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 79003681 is about 8888.4014873317. The cubic root of 79003681 is about 429.0907069804.

The spelling of 79003681 in words is "seventy-nine million, three thousand, six hundred eighty-one".