7404391693 has 2 divisors, whose sum is σ = 7404391694. Its totient is φ = 7404391692.

The previous prime is 7404391669. The next prime is 7404391711. The reversal of 7404391693 is 3961934047.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6365167524 + 1039224169 = 79782^2 + 32237^2 .

It is a cyclic number.

It is not a de Polignac number, because 7404391693 - 2⁵ = 7404391661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7404391663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3702195846 + 3702195847.

It is an arithmetic number, because the mean of its divisors is an integer number (3702195847).

Almost surely, 2^7404391693 is an apocalyptic number.

It is an amenable number.

7404391693 is a deficient number, since it is larger than the sum of its proper divisors (1).

7404391693 is an equidigital number, since it uses as much as digits as its factorization.

7404391693 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 489888, while the sum is 46.

The square root of 7404391693 is about 86048.7750813456. The cubic root of 7404391693 is about 1949.0805828279.

The spelling of 7404391693 in words is "seven billion, four hundred four million, three hundred ninety-one thousand, six hundred ninety-three".