102947900 has 72 divisors (see below), whose sum is σ = 251650560. Its totient is φ = 36216000.

The previous prime is 102947899. The next prime is 102947921. The reversal of 102947900 is 9749201.

It is a super-2 number, since 2×102947900² = 21196540228820000, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 32591 + ... + 35609.

Almost surely, 2^102947900 is an apocalyptic number.

102947900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 102947900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (125825280).

102947900 is an abundant number, since it is smaller than the sum of its proper divisors (148702660).

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

102947900 is a wasteful number, since it uses less digits than its factorization.

102947900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3075 (or 3068 counting only the distinct ones).

The product of its (nonzero) digits is 4536, while the sum is 32.

The square root of 102947900 is about 10146.3244576546. The cubic root of 102947900 is about 468.6757654295.

The spelling of 102947900 in words is "one hundred two million, nine hundred forty-seven thousand, nine hundred".