5123779 has 4 divisors (see below), whose sum is σ = 5346576. Its totient is φ = 4900984.

The previous prime is 5123777. The next prime is 5123791. The reversal of 5123779 is 9773215.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 5123779 - 2¹ = 5123777 is a prime.

It is a super-2 number, since 2×5123779² = 52506222481682, which contains 22 as substring.

It is a Duffinian number.

5123779 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (5123771) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 111364 + ... + 111409.

It is an arithmetic number, because the mean of its divisors is an integer number (1336644).

Almost surely, 2^5123779 is an apocalyptic number.

5123779 is a deficient number, since it is larger than the sum of its proper divisors (222797).

5123779 is a wasteful number, since it uses less digits than its factorization.

5123779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222796.

The product of its digits is 13230, while the sum is 34.

The square root of 5123779 is about 2263.5765946837. The cubic root of 5123779 is about 172.3971689861.

The spelling of 5123779 in words is "five million, one hundred twenty-three thousand, seven hundred seventy-nine".