5379781 has 12 divisors (see below), whose sum is σ = 5970636. Its totient is φ = 4843520.

The previous prime is 5379767. The next prime is 5379791. The reversal of 5379781 is 1879735.

It can be written as a sum of positive squares in 2 ways, for example, as 5134756 + 245025 = 2266^2 + 495^2 .

It is not a de Polignac number, because 5379781 - 2⁵ = 5379749 is a prime.

It is a super-2 number, since 2×5379781² = 57884087215922, which contains 22 as substring.

It is a Duffinian number.

Its product of digits (52920) is a multiple of the sum of its prime divisors (441).

5379781 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5379791) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20805 + ... + 21061.

It is an arithmetic number, because the mean of its divisors is an integer number (497553).

Almost surely, 2^5379781 is an apocalyptic number.

It is an amenable number.

5379781 is a deficient number, since it is larger than the sum of its proper divisors (590855).

5379781 is a wasteful number, since it uses less digits than its factorization.

5379781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 452 (or 441 counting only the distinct ones).

The product of its digits is 52920, while the sum is 40.

The square root of 5379781 is about 2319.4354916660. The cubic root of 5379781 is about 175.2218248251.

The spelling of 5379781 in words is "five million, three hundred seventy-nine thousand, seven hundred eighty-one".