79963069 has 2 divisors, whose sum is σ = 79963070. Its totient is φ = 79963068.

The previous prime is 79963067. The next prime is 79963099. The reversal of 79963069 is 96036997.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 78535044 + 1428025 = 8862^2 + 1195^2 .

It is a cyclic number.

It is not a de Polignac number, because 79963069 - 2¹ = 79963067 is a prime.

It is a super-2 number, since 2×79963069² = 12788184807797522, which contains 22 as substring.

Together with 79963067, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (79963067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39981534 + 39981535.

It is an arithmetic number, because the mean of its divisors is an integer number (39981535).

Almost surely, 2^79963069 is an apocalyptic number.

It is an amenable number.

79963069 is a deficient number, since it is larger than the sum of its proper divisors (1).

79963069 is an equidigital number, since it uses as much as digits as its factorization.

79963069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 551124, while the sum is 49.

The square root of 79963069 is about 8942.2071660189. The cubic root of 79963069 is about 430.8206232779.

The spelling of 79963069 in words is "seventy-nine million, nine hundred sixty-three thousand, sixty-nine".