74799799 has 2 divisors, whose sum is σ = 74799800. Its totient is φ = 74799798.

The previous prime is 74799797. The next prime is 74799811. The reversal of 74799799 is 99799747.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 74799799 - 2¹ = 74799797 is a prime.

Together with 74799797, 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 (74799793) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37399899 + 37399900.

It is an arithmetic number, because the mean of its divisors is an integer number (37399900).

Almost surely, 2^74799799 is an apocalyptic number.

74799799 is a deficient number, since it is larger than the sum of its proper divisors (1).

74799799 is an equidigital number, since it uses as much as digits as its factorization.

74799799 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9001692, while the sum is 61.

The square root of 74799799 is about 8648.6877039236. The cubic root of 74799799 is about 421.3407625812.

The spelling of 74799799 in words is "seventy-four million, seven hundred ninety-nine thousand, seven hundred ninety-nine".