7408997 has 2 divisors, whose sum is σ = 7408998. Its totient is φ = 7408996.

The previous prime is 7408937. The next prime is 7409009. The reversal of 7408997 is 7998047.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5755201 + 1653796 = 2399^2 + 1286^2 .

It is an emirp because it is prime and its reverse (7998047) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7408997 - 2²² = 3214693 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7408937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3704498 + 3704499.

It is an arithmetic number, because the mean of its divisors is an integer number (3704499).

Almost surely, 2^7408997 is an apocalyptic number.

It is an amenable number.

7408997 is a deficient number, since it is larger than the sum of its proper divisors (1).

7408997 is an equidigital number, since it uses as much as digits as its factorization.

7408997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 127008, while the sum is 44.

The square root of 7408997 is about 2721.9472809002. The cubic root of 7408997 is about 194.9484588744.

The spelling of 7408997 in words is "seven million, four hundred eight thousand, nine hundred ninety-seven".