7077940 has 12 divisors (see below), whose sum is σ = 14863716. Its totient is φ = 2831168.

The previous prime is 7077923. The next prime is 7077971. The reversal of 7077940 is 497707.

It can be written as a sum of positive squares in 2 ways, for example, as 1192464 + 5885476 = 1092^2 + 2426^2 .

It is a junction number, because it is equal to n+sod(n) for n = 7077896 and 7077905.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 176929 + ... + 176968.

It is an arithmetic number, because the mean of its divisors is an integer number (1238643).

Almost surely, 2^7077940 is an apocalyptic number.

It is an amenable number.

7077940 is an abundant number, since it is smaller than the sum of its proper divisors (7785776).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7077940 is a wasteful number, since it uses less digits than its factorization.

7077940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 353906 (or 353904 counting only the distinct ones).

The product of its (nonzero) digits is 12348, while the sum is 34.

The square root of 7077940 is about 2660.4398132640. The cubic root of 7077940 is about 192.0004701956. Note that the first 3 decimals are identical.

The spelling of 7077940 in words is "seven million, seventy-seven thousand, nine hundred forty".