5217990 has 16 divisors (see below), whose sum is σ = 12523248. Its totient is φ = 1391456.

The previous prime is 5217943. The next prime is 5217991. The reversal of 5217990 is 997125.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5217991) 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, 86937 + ... + 86996.

It is an arithmetic number, because the mean of its divisors is an integer number (782703).

Almost surely, 2^5217990 is an apocalyptic number.

5217990 is an abundant number, since it is smaller than the sum of its proper divisors (7305258).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5217990 is a wasteful number, since it uses less digits than its factorization.

5217990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173943.

The product of its (nonzero) digits is 5670, while the sum is 33.

The square root of 5217990 is about 2284.2920128565. The cubic root of 5217990 is about 173.4473813865.

The spelling of 5217990 in words is "five million, two hundred seventeen thousand, nine hundred ninety".