102997680 has 160 divisors (see below), whose sum is σ = 341121024. Its totient is φ = 25648128.

The previous prime is 102997673. The next prime is 102997691. The reversal of 102997680 is 86799201.

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 31 ways as a sum of consecutive naturals, for example, 259242 + ... + 259638.

Almost surely, 2^102997680 is an apocalyptic number.

102997680 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 102997680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (170560512).

102997680 is an abundant number, since it is smaller than the sum of its proper divisors (238123344).

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

102997680 is a wasteful number, since it uses less digits than its factorization.

102997680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 483 (or 477 counting only the distinct ones).

The product of its (nonzero) digits is 54432, while the sum is 42.

The square root of 102997680 is about 10148.7772662523. Note that the first 3 decimals coincide. The cubic root of 102997680 is about 468.7512952853.

The spelling of 102997680 in words is "one hundred two million, nine hundred ninety-seven thousand, six hundred eighty".