102986428 has 12 divisors (see below), whose sum is σ = 180704440. Its totient is φ = 51356592.

The previous prime is 102986417. The next prime is 102986431. The reversal of 102986428 is 824689201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32451 + ... + 35482.

Almost surely, 2^102986428 is an apocalyptic number.

It is an amenable number.

102986428 is a deficient number, since it is larger than the sum of its proper divisors (77718012).

102986428 is a wasteful number, since it uses less digits than its factorization.

102986428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68316 (or 68314 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 40.

The square root of 102986428 is about 10148.2228986163. Note that the first 3 decimals coincide. The cubic root of 102986428 is about 468.7342250573.

The spelling of 102986428 in words is "one hundred two million, nine hundred eighty-six thousand, four hundred twenty-eight".