7940077 has 2 divisors, whose sum is σ = 7940078. Its totient is φ = 7940076.

The previous prime is 7940069. The next prime is 7940087. The reversal of 7940077 is 7700497.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7733961 + 206116 = 2781^2 + 454^2 .

It is a cyclic number.

It is not a de Polignac number, because 7940077 - 2³ = 7940069 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7940017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3970038 + 3970039.

It is an arithmetic number, because the mean of its divisors is an integer number (3970039).

Almost surely, 2^7940077 is an apocalyptic number.

It is an amenable number.

7940077 is a deficient number, since it is larger than the sum of its proper divisors (1).

7940077 is an equidigital number, since it uses as much as digits as its factorization.

7940077 is an odious number, because the sum of its binary digits is odd.

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

The square root of 7940077 is about 2817.8142238267. The cubic root of 7940077 is about 199.4993896586.

The spelling of 7940077 in words is "seven million, nine hundred forty thousand, seventy-seven".