102343986 has 20 divisors (see below), whose sum is σ = 229326702. Its totient is φ = 34114608.

The previous prime is 102343981. The next prime is 102343991. The reversal of 102343986 is 689343201.

It is an interprime number because it is at equal distance from previous prime (102343981) and next prime (102343991).

It can be written as a sum of positive squares in only one way, i.e., 59768361 + 42575625 = 7731^2 + 6525^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 102343986.

It is not an unprimeable number, because it can be changed into a prime (102343981) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 315715 + ... + 316038.

Almost surely, 2^102343986 is an apocalyptic number.

102343986 is an abundant number, since it is smaller than the sum of its proper divisors (126982716).

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

102343986 is an equidigital number, since it uses as much as digits as its factorization.

102343986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 631767 (or 631758 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 36.

The square root of 102343986 is about 10116.5204492454. The cubic root of 102343986 is about 467.7575173834.

The spelling of 102343986 in words is "one hundred two million, three hundred forty-three thousand, nine hundred eighty-six".