102979385 has 8 divisors (see below), whose sum is σ = 124709640. Its totient is φ = 81627264.

The previous prime is 102979363. The next prime is 102979391. The reversal of 102979385 is 583979201.

It can be written as a sum of positive squares in 4 ways, for example, as 4414201 + 98565184 = 2101^2 + 9928^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 102979385 - 2⁶ = 102979321 is a prime.

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, 93932 + ... + 95021.

It is an arithmetic number, because the mean of its divisors is an integer number (15588705).

Almost surely, 2^102979385 is an apocalyptic number.

It is an amenable number.

102979385 is a deficient number, since it is larger than the sum of its proper divisors (21730255).

102979385 is a wasteful number, since it uses less digits than its factorization.

102979385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 189067.

The product of its (nonzero) digits is 136080, while the sum is 44.

The square root of 102979385 is about 10147.8758861153. The cubic root of 102979385 is about 468.7235396027.

The spelling of 102979385 in words is "one hundred two million, nine hundred seventy-nine thousand, three hundred eighty-five".