102823623 has 12 divisors (see below), whose sum is σ = 169740688. Its totient is φ = 58756320.

The previous prime is 102823619. The next prime is 102823631. The reversal of 102823623 is 326328201.

102823623 is a `hidden beast` number, since 10 + 2 + 8 + 23 + 623 = 666.

It is not a de Polignac number, because 102823623 - 2² = 102823619 is a prime.

It is a super-2 number, since 2×102823623² = 21145394893692258, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102823663) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 815998 + ... + 816123.

Almost surely, 2^102823623 is an apocalyptic number.

102823623 is a deficient number, since it is larger than the sum of its proper divisors (66917065).

102823623 is a wasteful number, since it uses less digits than its factorization.

102823623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1632134 (or 1632131 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 102823623 is about 10140.1983708407. The cubic root of 102823623 is about 468.4870969491.

The spelling of 102823623 in words is "one hundred two million, eight hundred twenty-three thousand, six hundred twenty-three".