102379705 has 4 divisors (see below), whose sum is σ = 122855652. Its totient is φ = 81903760.

The previous prime is 102379699. The next prime is 102379757. The reversal of 102379705 is 507973201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 507973201 = 73 ⋅6958537.

It can be written as a sum of positive squares in 2 ways, for example, as 21864976 + 80514729 = 4676^2 + 8973^2 .

It is not a de Polignac number, because 102379705 - 2¹¹ = 102377657 is a prime.

It is a Duffinian 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, 10237966 + ... + 10237975.

It is an arithmetic number, because the mean of its divisors is an integer number (30713913).

Almost surely, 2^102379705 is an apocalyptic number.

It is an amenable number.

102379705 is a deficient number, since it is larger than the sum of its proper divisors (20475947).

102379705 is an equidigital number, since it uses as much as digits as its factorization.

102379705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20475946.

The product of its (nonzero) digits is 13230, while the sum is 34.

The square root of 102379705 is about 10118.2856749550. The cubic root of 102379705 is about 467.8119282907.

The spelling of 102379705 in words is "one hundred two million, three hundred seventy-nine thousand, seven hundred five".