5407721 has 4 divisors (see below), whose sum is σ = 5899344. Its totient is φ = 4916100.

The previous prime is 5407693. The next prime is 5407739. The reversal of 5407721 is 1277045.

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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5407721 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (5407741) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 245795 + ... + 245816.

It is an arithmetic number, because the mean of its divisors is an integer number (1474836).

Almost surely, 2^5407721 is an apocalyptic number.

It is an amenable number.

5407721 is a deficient number, since it is larger than the sum of its proper divisors (491623).

5407721 is a wasteful number, since it uses less digits than its factorization.

5407721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 491622.

The product of its (nonzero) digits is 1960, while the sum is 26.

The square root of 5407721 is about 2325.4507090025. The cubic root of 5407721 is about 175.5246405502.

The spelling of 5407721 in words is "five million, four hundred seven thousand, seven hundred twenty-one".