77490123 has 16 divisors (see below), whose sum is σ = 107431296. Its totient is φ = 49642560.

The previous prime is 77490109. The next prime is 77490139. The reversal of 77490123 is 32109477.

It is not a de Polignac number, because 77490123 - 2¹⁶ = 77424587 is a prime.

It is not an unprimeable number, because it can be changed into a prime (77490103) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3540 + ... + 12942.

It is an arithmetic number, because the mean of its divisors is an integer number (6714456).

Almost surely, 2^77490123 is an apocalyptic number.

77490123 is a deficient number, since it is larger than the sum of its proper divisors (29941173).

77490123 is a wasteful number, since it uses less digits than its factorization.

77490123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9514.

The product of its (nonzero) digits is 10584, while the sum is 33.

The square root of 77490123 is about 8802.8474370513. The cubic root of 77490123 is about 426.3328362728.

The spelling of 77490123 in words is "seventy-seven million, four hundred ninety thousand, one hundred twenty-three".