76142477 has 2 divisors, whose sum is σ = 76142478. Its totient is φ = 76142476.

The previous prime is 76142419. The next prime is 76142497. The reversal of 76142477 is 77424167.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 71588521 + 4553956 = 8461^2 + 2134^2 .

It is an emirp because it is prime and its reverse (77424167) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 76142477 - 2⁶ = 76142413 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 76142477.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (76142497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38071238 + 38071239.

It is an arithmetic number, because the mean of its divisors is an integer number (38071239).

Almost surely, 2^76142477 is an apocalyptic number.

It is an amenable number.

76142477 is a deficient number, since it is larger than the sum of its proper divisors (1).

76142477 is an equidigital number, since it uses as much as digits as its factorization.

76142477 is an evil number, because the sum of its binary digits is even.

The product of its digits is 65856, while the sum is 38.

The square root of 76142477 is about 8725.9656772188. The cubic root of 76142477 is about 423.8468894333.

The spelling of 76142477 in words is "seventy-six million, one hundred forty-two thousand, four hundred seventy-seven".