74419997 has 2 divisors, whose sum is σ = 74419998. Its totient is φ = 74419996.

The previous prime is 74419993. The next prime is 74420011. The reversal of 74419997 is 79991447.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 62900761 + 11519236 = 7931^2 + 3394^2 .

It is a cyclic number.

It is not a de Polignac number, because 74419997 - 2² = 74419993 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74419991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37209998 + 37209999.

It is an arithmetic number, because the mean of its divisors is an integer number (37209999).

Almost surely, 2^74419997 is an apocalyptic number.

It is an amenable number.

74419997 is a deficient number, since it is larger than the sum of its proper divisors (1).

74419997 is an equidigital number, since it uses as much as digits as its factorization.

74419997 is an evil number, because the sum of its binary digits is even.

The product of its digits is 571536, while the sum is 50.

The square root of 74419997 is about 8626.7025565972. The cubic root of 74419997 is about 420.6264216271.

The spelling of 74419997 in words is "seventy-four million, four hundred nineteen thousand, nine hundred ninety-seven".