7925977 has 2 divisors, whose sum is σ = 7925978. Its totient is φ = 7925976.

The previous prime is 7925969. The next prime is 7925989. The reversal of 7925977 is 7795297.

It is a happy number.

7925977 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7778521 + 147456 = 2789^2 + 384^2 .

It is a cyclic number.

It is not a de Polignac number, because 7925977 - 2³ = 7925969 is a prime.

It is a super-2 number, since 2×7925977² = 125642222809058, which contains 22 as substring.

It is a Chen prime.

7925977 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (7925917) 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 as a sum of consecutive naturals, namely, 3962988 + 3962989.

It is an arithmetic number, because the mean of its divisors is an integer number (3962989).

Almost surely, 2^7925977 is an apocalyptic number.

It is an amenable number.

7925977 is a deficient number, since it is larger than the sum of its proper divisors (1).

7925977 is an equidigital number, since it uses as much as digits as its factorization.

7925977 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 277830, while the sum is 46.

The square root of 7925977 is about 2815.3111728546. The cubic root of 7925977 is about 199.3812292548.

The spelling of 7925977 in words is "seven million, nine hundred twenty-five thousand, nine hundred seventy-seven".