6901439 has 4 divisors (see below), whose sum is σ = 7307424. Its totient is φ = 6495456.

The previous prime is 6901429. The next prime is 6901441. The reversal of 6901439 is 9341096.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6901439 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6901429) 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, 202967 + ... + 203000.

It is an arithmetic number, because the mean of its divisors is an integer number (1826856).

Almost surely, 2^6901439 is an apocalyptic number.

6901439 is a deficient number, since it is larger than the sum of its proper divisors (405985).

6901439 is a wasteful number, since it uses less digits than its factorization.

6901439 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 405984.

The product of its (nonzero) digits is 5832, while the sum is 32.

The square root of 6901439 is about 2627.0590020020. The cubic root of 6901439 is about 190.3910597543.

The spelling of 6901439 in words is "six million, nine hundred one thousand, four hundred thirty-nine".