913394503 has 6 divisors (see below), whose sum is σ = 1043970824. Its totient is φ = 782841036.

The previous prime is 913394491. The next prime is 913394539. The reversal of 913394503 is 305493319.

It is not a de Polignac number, because 913394503 - 2¹⁷ = 913263431 is a prime.

It is a super-2 number, since 2×913394503² = 1668579036221234018, 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 (913394563) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 74250 + ... + 85672.

Almost surely, 2^913394503 is an apocalyptic number.

913394503 is a deficient number, since it is larger than the sum of its proper divisors (130576321).

913394503 is an frugal number, since it uses more digits than its factorization.

913394503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22853 (or 11430 counting only the distinct ones).

The product of its (nonzero) digits is 43740, while the sum is 37.

The square root of 913394503 is about 30222.4172262908. The cubic root of 913394503 is about 970.2555400709.

The spelling of 913394503 in words is "nine hundred thirteen million, three hundred ninety-four thousand, five hundred three".