6779955 has 32 divisors (see below), whose sum is σ = 13353984. Its totient is φ = 2860416.

The previous prime is 6779953. The next prime is 6779987. The reversal of 6779955 is 5599776.

It is not a de Polignac number, because 6779955 - 2¹ = 6779953 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6779951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1119 + ... + 3848.

It is an arithmetic number, because the mean of its divisors is an integer number (417312).

Almost surely, 2^6779955 is an apocalyptic number.

6779955 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

6779955 is a deficient number, since it is larger than the sum of its proper divisors (6574029).

6779955 is a wasteful number, since it uses less digits than its factorization.

6779955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4995.

The product of its digits is 595350, while the sum is 48.

The square root of 6779955 is about 2603.8346721710. The cubic root of 6779955 is about 189.2673074373.

The spelling of 6779955 in words is "six million, seven hundred seventy-nine thousand, nine hundred fifty-five".