74718797 has 2 divisors, whose sum is σ = 74718798. Its totient is φ = 74718796.

The previous prime is 74718781. The next prime is 74718827. The reversal of 74718797 is 79781747.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 49928356 + 24790441 = 7066^2 + 4979^2 .

It is a cyclic number.

It is not a de Polignac number, because 74718797 - 2⁴ = 74718781 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74718997) 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, 37359398 + 37359399.

It is an arithmetic number, because the mean of its divisors is an integer number (37359399).

Almost surely, 2^74718797 is an apocalyptic number.

It is an amenable number.

74718797 is a deficient number, since it is larger than the sum of its proper divisors (1).

74718797 is an equidigital number, since it uses as much as digits as its factorization.

74718797 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 691488, while the sum is 50.

The square root of 74718797 is about 8644.0035284583. The cubic root of 74718797 is about 421.1886152398.

The spelling of 74718797 in words is "seventy-four million, seven hundred eighteen thousand, seven hundred ninety-seven".