6902439 has 4 divisors (see below), whose sum is σ = 9203256. Its totient is φ = 4601624.

The previous prime is 6902437. The next prime is 6902447. The reversal of 6902439 is 9342096.

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 6902439 - 2¹ = 6902437 is a prime.

It is an Ulam number.

It is a D-number.

6902439 is a modest number, since divided by 2439 gives 69 as remainder.

It is a plaindrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6902431) 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, 1150404 + ... + 1150409.

It is an arithmetic number, because the mean of its divisors is an integer number (2300814).

Almost surely, 2^6902439 is an apocalyptic number.

6902439 is a deficient number, since it is larger than the sum of its proper divisors (2300817).

6902439 is a wasteful number, since it uses less digits than its factorization.

6902439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2300816.

The product of its (nonzero) digits is 11664, while the sum is 33.

The square root of 6902439 is about 2627.2493220096. The cubic root of 6902439 is about 190.4002550281.

The spelling of 6902439 in words is "six million, nine hundred two thousand, four hundred thirty-nine".