102782879 has 8 divisors (see below), whose sum is σ = 103954320. Its totient is φ = 101616256.

The previous prime is 102782863. The next prime is 102782893. The reversal of 102782879 is 978287201.

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 102782879 - 2⁴ = 102782863 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102782819) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56624 + ... + 58410.

It is an arithmetic number, because the mean of its divisors is an integer number (12994290).

Almost surely, 2^102782879 is an apocalyptic number.

102782879 is a deficient number, since it is larger than the sum of its proper divisors (1171441).

102782879 is a wasteful number, since it uses less digits than its factorization.

102782879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2409.

The product of its (nonzero) digits is 112896, while the sum is 44.

The square root of 102782879 is about 10138.1891381055. The cubic root of 102782879 is about 468.4252092250.

The spelling of 102782879 in words is "one hundred two million, seven hundred eighty-two thousand, eight hundred seventy-nine".