102097770 has 16 divisors (see below), whose sum is σ = 245034720. Its totient is φ = 27226064.

The previous prime is 102097757. The next prime is 102097799. The reversal of 102097770 is 77790201.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1701600 + ... + 1701659.

It is an arithmetic number, because the mean of its divisors is an integer number (15314670).

Almost surely, 2^102097770 is an apocalyptic number.

102097770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102097770 is an abundant number, since it is smaller than the sum of its proper divisors (142936950).

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

102097770 is a wasteful number, since it uses less digits than its factorization.

102097770 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3403269.

The product of its (nonzero) digits is 6174, while the sum is 33.

The square root of 102097770 is about 10104.3441152803. The cubic root of 102097770 is about 467.3821106463.

It can be divided in two parts, 1020 and 97770, that added together give a triangular number (98790 = T₄₄₄).

The spelling of 102097770 in words is "one hundred two million, ninety-seven thousand, seven hundred seventy".