79669741 has 2 divisors, whose sum is σ = 79669742. Its totient is φ = 79669740.

The previous prime is 79669703. The next prime is 79669753. The reversal of 79669741 is 14796697.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 60000516 + 19669225 = 7746^2 + 4435^2 .

It is an emirp because it is prime and its reverse (14796697) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 79669741 - 2⁷ = 79669613 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (79669781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39834870 + 39834871.

It is an arithmetic number, because the mean of its divisors is an integer number (39834871).

Almost surely, 2^79669741 is an apocalyptic number.

It is an amenable number.

79669741 is a deficient number, since it is larger than the sum of its proper divisors (1).

79669741 is an equidigital number, since it uses as much as digits as its factorization.

79669741 is an evil number, because the sum of its binary digits is even.

The product of its digits is 571536, while the sum is 49.

The square root of 79669741 is about 8925.7907772925. The cubic root of 79669741 is about 430.2931856665.

The spelling of 79669741 in words is "seventy-nine million, six hundred sixty-nine thousand, seven hundred forty-one".