102697280 has 168 divisors, whose sum is σ = 297289728. Its totient is φ = 33094656.

The previous prime is 102697271. The next prime is 102697307. The reversal of 102697280 is 82796201.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 102697280.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 808577 + ... + 808703.

Almost surely, 2^102697280 is an apocalyptic number.

102697280 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 102697280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (148644864).

102697280 is an abundant number, since it is smaller than the sum of its proper divisors (194592448).

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

102697280 is a wasteful number, since it uses less digits than its factorization.

102697280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189 (or 160 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 35.

The square root of 102697280 is about 10133.9666468762. The cubic root of 102697280 is about 468.2951361166.

The spelling of 102697280 in words is "one hundred two million, six hundred ninety-seven thousand, two hundred eighty".