77123060 has 36 divisors (see below), whose sum is σ = 188403012. Its totient is φ = 26441856.

The previous prime is 77123041. The next prime is 77123129. The reversal of 77123060 is 6032177.

It can be written as a sum of positive squares in 2 ways, for example, as 12545764 + 64577296 = 3542^2 + 8036^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 38369 + ... + 40328.

It is an arithmetic number, because the mean of its divisors is an integer number (5233417).

Almost surely, 2^77123060 is an apocalyptic number.

77123060 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

77123060 is an abundant number, since it is smaller than the sum of its proper divisors (111279952).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

77123060 is a wasteful number, since it uses less digits than its factorization.

77123060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78720 (or 78711 counting only the distinct ones).

The product of its (nonzero) digits is 1764, while the sum is 26.

The square root of 77123060 is about 8781.9735822878. The cubic root of 77123060 is about 425.6586051568.

The spelling of 77123060 in words is "seventy-seven million, one hundred twenty-three thousand, sixty".