6772945 has 4 divisors (see below), whose sum is σ = 8127540. Its totient is φ = 5418352.

The previous prime is 6772939. The next prime is 6772951. The reversal of 6772945 is 5492776.

6772945 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 (6772939) and next prime (6772951).

It can be written as a sum of positive squares in 2 ways, for example, as 2660161 + 4112784 = 1631^2 + 2028^2 .

It is a cyclic number.

It is not a de Polignac number, because 6772945 - 2³ = 6772937 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

6772945 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 6772898 and 6772907.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 677290 + ... + 677299.

It is an arithmetic number, because the mean of its divisors is an integer number (2031885).

Almost surely, 2^6772945 is an apocalyptic number.

It is an amenable number.

6772945 is a deficient number, since it is larger than the sum of its proper divisors (1354595).

6772945 is a wasteful number, since it uses less digits than its factorization.

6772945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1354594.

The product of its digits is 105840, while the sum is 40.

The square root of 6772945 is about 2602.4882324422. The cubic root of 6772945 is about 189.2020552171.

The spelling of 6772945 in words is "six million, seven hundred seventy-two thousand, nine hundred forty-five".