77013123 has 8 divisors (see below), whose sum is σ = 112019136. Its totient is φ = 46674600.

The previous prime is 77013107. The next prime is 77013149. The reversal of 77013123 is 32131077.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 77013123 - 2⁴ = 77013107 is a prime.

It is a super-2 number, since 2×77013123² = 11862042228426258, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 77013093 and 77013102.

It is not an unprimeable number, because it can be changed into a prime (77013103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1166833 + ... + 1166898.

It is an arithmetic number, because the mean of its divisors is an integer number (14002392).

Almost surely, 2^77013123 is an apocalyptic number.

77013123 is a deficient number, since it is larger than the sum of its proper divisors (35006013).

77013123 is a wasteful number, since it uses less digits than its factorization.

77013123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2333745.

The product of its (nonzero) digits is 882, while the sum is 24.

The square root of 77013123 is about 8775.7121078577. The cubic root of 77013123 is about 425.4562537329.

The spelling of 77013123 in words is "seventy-seven million, thirteen thousand, one hundred twenty-three".