77288423 has 2 divisors, whose sum is σ = 77288424. Its totient is φ = 77288422.

The previous prime is 77288411. The next prime is 77288429. The reversal of 77288423 is 32488277.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 77288423 - 2⁶ = 77288359 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (77288429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38644211 + 38644212.

It is an arithmetic number, because the mean of its divisors is an integer number (38644212).

Almost surely, 2^77288423 is an apocalyptic number.

77288423 is a deficient number, since it is larger than the sum of its proper divisors (1).

77288423 is an equidigital number, since it uses as much as digits as its factorization.

77288423 is an evil number, because the sum of its binary digits is even.

The product of its digits is 150528, while the sum is 41.

The square root of 77288423 is about 8791.3834519943. The cubic root of 77288423 is about 425.9626125284.

The spelling of 77288423 in words is "seventy-seven million, two hundred eighty-eight thousand, four hundred twenty-three".