100494789 has 16 divisors (see below), whose sum is σ = 137168640. Its totient is φ = 65415680.

The previous prime is 100494763. The next prime is 100494791. The reversal of 100494789 is 987494001.

It is a cyclic number.

It is not a de Polignac number, because 100494789 - 2⁷ = 100494661 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 100494789.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100492789) 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, 113629 + ... + 114509.

It is an arithmetic number, because the mean of its divisors is an integer number (8573040).

Almost surely, 2^100494789 is an apocalyptic number.

It is an amenable number.

100494789 is a deficient number, since it is larger than the sum of its proper divisors (36673851).

100494789 is an equidigital number, since it uses as much as digits as its factorization.

100494789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1740.

The product of its (nonzero) digits is 72576, while the sum is 42.

The square root of 100494789 is about 10024.7089234551. The cubic root of 100494789 is about 464.9231599242.

The spelling of 100494789 in words is "one hundred million, four hundred ninety-four thousand, seven hundred eighty-nine".