5420991 has 8 divisors (see below), whose sum is σ = 7246080. Its totient is φ = 3604952.

The previous prime is 5420983. The next prime is 5421007. The reversal of 5420991 is 1990245.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 5420991 - 2³ = 5420983 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5420951) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 711 + ... + 3368.

It is an arithmetic number, because the mean of its divisors is an integer number (905760).

Almost surely, 2^5420991 is an apocalyptic number.

5420991 is a deficient number, since it is larger than the sum of its proper divisors (1825089).

5420991 is a wasteful number, since it uses less digits than its factorization.

5420991 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4525.

The product of its (nonzero) digits is 3240, while the sum is 30.

The square root of 5420991 is about 2328.3021711110. The cubic root of 5420991 is about 175.6680965061.

The spelling of 5420991 in words is "five million, four hundred twenty thousand, nine hundred ninety-one".