5391949 has 4 divisors (see below), whose sum is σ = 5430880. Its totient is φ = 5353020.

The previous prime is 5391937. The next prime is 5391961. The reversal of 5391949 is 9491935.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (5391937) and next prime (5391961).

It is a cyclic number.

It is not a de Polignac number, because 5391949 - 2⁹ = 5391437 is a prime.

It is a super-2 number, since 2×5391949² = 58146228037202, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5391979) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19257 + ... + 19534.

It is an arithmetic number, because the mean of its divisors is an integer number (1357720).

Almost surely, 2^5391949 is an apocalyptic number.

It is an amenable number.

5391949 is a deficient number, since it is larger than the sum of its proper divisors (38931).

5391949 is a wasteful number, since it uses less digits than its factorization.

5391949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38930.

The product of its digits is 43740, while the sum is 40.

The square root of 5391949 is about 2322.0570621757. The cubic root of 5391949 is about 175.3538310486.

The spelling of 5391949 in words is "five million, three hundred ninety-one thousand, nine hundred forty-nine".