5390661 has 8 divisors (see below), whose sum is σ = 7565920. Its totient is φ = 3404592.

The previous prime is 5390659. The next prime is 5390669. The reversal of 5390661 is 1660935.

It is a happy number.

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

It is not a de Polignac number, because 5390661 - 2¹ = 5390659 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5390669) 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, 47230 + ... + 47343.

It is an arithmetic number, because the mean of its divisors is an integer number (945740).

Almost surely, 2^5390661 is an apocalyptic number.

It is an amenable number.

5390661 is a deficient number, since it is larger than the sum of its proper divisors (2175259).

5390661 is a wasteful number, since it uses less digits than its factorization.

5390661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94595.

The product of its (nonzero) digits is 4860, while the sum is 30.

The square root of 5390661 is about 2321.7797053123. The cubic root of 5390661 is about 175.3398674075.

The spelling of 5390661 in words is "five million, three hundred ninety thousand, six hundred sixty-one".