5394835421 has 2 divisors, whose sum is σ = 5394835422. Its totient is φ = 5394835420.

The previous prime is 5394835417. The next prime is 5394835477. The reversal of 5394835421 is 1245384935.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4568272921 + 826562500 = 67589^2 + 28750^2 .

It is a cyclic number.

It is not a de Polignac number, because 5394835421 - 2² = 5394835417 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5394805421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2697417710 + 2697417711.

It is an arithmetic number, because the mean of its divisors is an integer number (2697417711).

Almost surely, 2^5394835421 is an apocalyptic number.

It is an amenable number.

5394835421 is a deficient number, since it is larger than the sum of its proper divisors (1).

5394835421 is an equidigital number, since it uses as much as digits as its factorization.

5394835421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 518400, while the sum is 44.

The square root of 5394835421 is about 73449.5433682198. The cubic root of 5394835421 is about 1753.8511563542.

The spelling of 5394835421 in words is "five billion, three hundred ninety-four million, eight hundred thirty-five thousand, four hundred twenty-one".