102680690 has 64 divisors (see below), whose sum is σ = 217486080. Its totient is φ = 34179840.

The previous prime is 102680681. The next prime is 102680729. The reversal of 102680690 is 96086201.

It is a super-2 number, since 2×102680690² = 21086648197752200, which contains 22 as substring.

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, 593444 + ... + 593616.

It is an arithmetic number, because the mean of its divisors is an integer number (3398220).

Almost surely, 2^102680690 is an apocalyptic number.

102680690 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102680690 is an abundant number, since it is smaller than the sum of its proper divisors (114805390).

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

102680690 is a wasteful number, since it uses less digits than its factorization.

102680690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 387.

The product of its (nonzero) digits is 5184, while the sum is 32.

The square root of 102680690 is about 10133.1480794470. The cubic root of 102680690 is about 468.2699181988.

The spelling of 102680690 in words is "one hundred two million, six hundred eighty thousand, six hundred ninety".