102797178 has 64 divisors (see below), whose sum is σ = 236666880. Its totient is φ = 29476800.

The previous prime is 102797171. The next prime is 102797179. The reversal of 102797178 is 871797201.

It is not an unprimeable number, because it can be changed into a prime (102797171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 95628 + ... + 96696.

It is an arithmetic number, because the mean of its divisors is an integer number (3697920).

Almost surely, 2^102797178 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 102797178, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (118333440).

102797178 is an abundant number, since it is smaller than the sum of its proper divisors (133869702).

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

102797178 is a wasteful number, since it uses less digits than its factorization.

102797178 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1163.

The product of its (nonzero) digits is 49392, while the sum is 42.

The square root of 102797178 is about 10138.8943184156. The cubic root of 102797178 is about 468.4469304220.

The spelling of 102797178 in words is "one hundred two million, seven hundred ninety-seven thousand, one hundred seventy-eight".