102403693 has 4 divisors (see below), whose sum is σ = 117032800. Its totient is φ = 87774588.

The previous prime is 102403681. The next prime is 102403709. The reversal of 102403693 is 396304201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 396304201 = 2131 ⋅185971.

It is a cyclic number.

It is not a de Polignac number, because 102403693 - 2⁵ = 102403661 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 (102403603) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7314543 + ... + 7314556.

It is an arithmetic number, because the mean of its divisors is an integer number (29258200).

Almost surely, 2^102403693 is an apocalyptic number.

It is an amenable number.

102403693 is a deficient number, since it is larger than the sum of its proper divisors (14629107).

102403693 is an equidigital number, since it uses as much as digits as its factorization.

102403693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14629106.

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 102403693 is about 10119.4709841968. The cubic root of 102403693 is about 467.8484622118.

Adding to 102403693 its reverse (396304201), we get a palindrome (498707894).

The spelling of 102403693 in words is "one hundred two million, four hundred three thousand, six hundred ninety-three".