102747986 has 16 divisors (see below), whose sum is σ = 173931840. Its totient is φ = 45092880.

The previous prime is 102747979. The next prime is 102748003. The reversal of 102747986 is 689747201.

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, 79886 + ... + 81161.

It is an arithmetic number, because the mean of its divisors is an integer number (10870740).

Almost surely, 2^102747986 is an apocalyptic number.

102747986 is a deficient number, since it is larger than the sum of its proper divisors (71183854).

102747986 is a wasteful number, since it uses less digits than its factorization.

102747986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161089.

The product of its (nonzero) digits is 169344, while the sum is 44.

The square root of 102747986 is about 10136.4681225760. The cubic root of 102747986 is about 468.3721958213.

The spelling of 102747986 in words is "one hundred two million, seven hundred forty-seven thousand, nine hundred eighty-six".