102678734 has 16 divisors (see below), whose sum is σ = 161518320. Its totient is φ = 48888000.

The previous prime is 102678733. The next prime is 102678761. The reversal of 102678734 is 437876201.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102678733) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 7892 + ... + 16359.

It is an arithmetic number, because the mean of its divisors is an integer number (10094895).

Almost surely, 2^102678734 is an apocalyptic number.

102678734 is a deficient number, since it is larger than the sum of its proper divisors (58839586).

102678734 is a wasteful number, since it uses less digits than its factorization.

102678734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24355.

The product of its (nonzero) digits is 56448, while the sum is 38.

The square root of 102678734 is about 10133.0515640650. The cubic root of 102678734 is about 468.2669447680.

The spelling of 102678734 in words is "one hundred two million, six hundred seventy-eight thousand, seven hundred thirty-four".