102785079 has 16 divisors (see below), whose sum is σ = 145308800. Its totient is φ = 64444896.

The previous prime is 102785069. The next prime is 102785087. The reversal of 102785079 is 970587201.

It is not a de Polignac number, because 102785079 - 2²¹ = 100687927 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 (102785069) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1437 + ... + 14409.

It is an arithmetic number, because the mean of its divisors is an integer number (9081800).

Almost surely, 2^102785079 is an apocalyptic number.

102785079 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

102785079 is a deficient number, since it is larger than the sum of its proper divisors (42523721).

102785079 is a wasteful number, since it uses less digits than its factorization.

102785079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13134.

The product of its (nonzero) digits is 35280, while the sum is 39.

The square root of 102785079 is about 10138.2976381639. The cubic root of 102785079 is about 468.4285513124.

The spelling of 102785079 in words is "one hundred two million, seven hundred eighty-five thousand, seventy-nine".