5405491 has 16 divisors (see below), whose sum is σ = 6709248. Its totient is φ = 4240800.

The previous prime is 5405479. The next prime is 5405503. The reversal of 5405491 is 1945045.

It is an interprime number because it is at equal distance from previous prime (5405479) and next prime (5405503).

It is a cyclic number.

It is not a de Polignac number, because 5405491 - 2⁵ = 5405459 is a prime.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (5405471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17226 + ... + 17536.

It is an arithmetic number, because the mean of its divisors is an integer number (419328).

Almost surely, 2^5405491 is an apocalyptic number.

5405491 is a deficient number, since it is larger than the sum of its proper divisors (1303757).

5405491 is a wasteful number, since it uses less digits than its factorization.

5405491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 522.

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 5405491 is about 2324.9711826171. The cubic root of 5405491 is about 175.5005100052.

It can be divided in two parts, 54054 and 91, that added together give a palindrome (54145).

The spelling of 5405491 in words is "five million, four hundred five thousand, four hundred ninety-one".