87770123 has 12 divisors (see below), whose sum is σ = 102311352. Its totient is φ = 75075840.

The previous prime is 87770119. The next prime is 87770149. The reversal of 87770123 is 32107778.

It is not a de Polignac number, because 87770123 - 2² = 87770119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87770723) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26411 + ... + 29547.

It is an arithmetic number, because the mean of its divisors is an integer number (8525946).

Almost surely, 2^87770123 is an apocalyptic number.

87770123 is a deficient number, since it is larger than the sum of its proper divisors (14541229).

87770123 is a wasteful number, since it uses less digits than its factorization.

87770123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3722 (or 3715 counting only the distinct ones).

The product of its (nonzero) digits is 16464, while the sum is 35.

The square root of 87770123 is about 9368.5710223064. The cubic root of 87770123 is about 444.4083759318.

The spelling of 87770123 in words is "eighty-seven million, seven hundred seventy thousand, one hundred twenty-three".