5498406391 has 2 divisors, whose sum is σ = 5498406392. Its totient is φ = 5498406390.

The previous prime is 5498406359. The next prime is 5498406443. The reversal of 5498406391 is 1936048945.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5498406391 - 2⁵ = 5498406359 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5498406191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2749203195 + 2749203196.

It is an arithmetic number, because the mean of its divisors is an integer number (2749203196).

Almost surely, 2^5498406391 is an apocalyptic number.

5498406391 is a deficient number, since it is larger than the sum of its proper divisors (1).

5498406391 is an equidigital number, since it uses as much as digits as its factorization.

5498406391 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 933120, while the sum is 49.

The square root of 5498406391 is about 74151.2399828890. The cubic root of 5498406391 is about 1765.0036665012.

The spelling of 5498406391 in words is "five billion, four hundred ninety-eight million, four hundred six thousand, three hundred ninety-one".