5405971 has 2 divisors, whose sum is σ = 5405972. Its totient is φ = 5405970.

The previous prime is 5405969. The next prime is 5405999. The reversal of 5405971 is 1795045.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5405971 - 2¹ = 5405969 is a prime.

Together with 5405969, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (5405921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2702985 + 2702986.

It is an arithmetic number, because the mean of its divisors is an integer number (2702986).

Almost surely, 2^5405971 is an apocalyptic number.

5405971 is a deficient number, since it is larger than the sum of its proper divisors (1).

5405971 is an equidigital number, since it uses as much as digits as its factorization.

5405971 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6300, while the sum is 31.

The square root of 5405971 is about 2325.0744074115. The cubic root of 5405971 is about 175.5057045843.

The spelling of 5405971 in words is "five million, four hundred five thousand, nine hundred seventy-one".