100339993 has 4 divisors (see below), whose sum is σ = 108058468. Its totient is φ = 92621520.

The previous prime is 100339973. The next prime is 100340003. The reversal of 100339993 is 399933001.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 51451929 + 48888064 = 7173^2 + 6992^2 .

It is a cyclic number.

It is not a de Polignac number, because 100339993 - 2¹⁷ = 100208921 is a prime.

It is a super-2 number, since 2×100339993² = 20136228390480098, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100339903) 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, 3859218 + ... + 3859243.

It is an arithmetic number, because the mean of its divisors is an integer number (27014617).

Almost surely, 2^100339993 is an apocalyptic number.

100339993 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

100339993 is a deficient number, since it is larger than the sum of its proper divisors (7718475).

100339993 is an equidigital number, since it uses as much as digits as its factorization.

100339993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7718474.

The product of its (nonzero) digits is 19683, while the sum is 37.

The square root of 100339993 is about 10016.9852251064. The cubic root of 100339993 is about 464.6843242271.

The spelling of 100339993 in words is "one hundred million, three hundred thirty-nine thousand, nine hundred ninety-three".