5191890 has 32 divisors (see below), whose sum is σ = 13594176. Its totient is φ = 1258560.

The previous prime is 5191873. The next prime is 5191909. The reversal of 5191890 is 981915.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7537 + ... + 8196.

It is an arithmetic number, because the mean of its divisors is an integer number (424818).

Almost surely, 2^5191890 is an apocalyptic number.

5191890 is an abundant number, since it is smaller than the sum of its proper divisors (8402286).

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

5191890 is a wasteful number, since it uses less digits than its factorization.

5191890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15754.

The product of its (nonzero) digits is 3240, while the sum is 33.

The square root of 5191890 is about 2278.5719211822. The cubic root of 5191890 is about 173.1577075488.

The spelling of 5191890 in words is "five million, one hundred ninety-one thousand, eight hundred ninety".