5209406 has 4 divisors (see below), whose sum is σ = 7814112. Its totient is φ = 2604702.

The previous prime is 5209403. The next prime is 5209409. The reversal of 5209406 is 6049025.

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

It is an interprime number because it is at equal distance from previous prime (5209403) and next prime (5209409).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5209403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1302350 + ... + 1302353.

It is an arithmetic number, because the mean of its divisors is an integer number (1953528).

Almost surely, 2^5209406 is an apocalyptic number.

5209406 is a deficient number, since it is larger than the sum of its proper divisors (2604706).

5209406 is a wasteful number, since it uses less digits than its factorization.

5209406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2604705.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 5209406 is about 2282.4123203313. The cubic root of 5209406 is about 173.3522176992.

The spelling of 5209406 in words is "five million, two hundred nine thousand, four hundred six".