102977856 has 42 divisors (see below), whose sum is σ = 295169082. Its totient is φ = 34325760.

The previous prime is 102977827. The next prime is 102977879. The reversal of 102977856 is 658779201.

It can be written as a sum of positive squares in only one way, i.e., 66977856 + 36000000 = 8184^2 + 6000^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 88815 + ... + 89966.

Almost surely, 2^102977856 is an apocalyptic number.

102977856 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

102977856 is an abundant number, since it is smaller than the sum of its proper divisors (192191226).

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

102977856 is a wasteful number, since it uses less digits than its factorization.

102977856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178799 (or 178786 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 45.

The square root of 102977856 is about 10147.8005498729. The cubic root of 102977856 is about 468.7212197797.

The spelling of 102977856 in words is "one hundred two million, nine hundred seventy-seven thousand, eight hundred fifty-six".