8403913 has 8 divisors (see below), whose sum is σ = 9628928. Its totient is φ = 7185024.

The previous prime is 8403869. The next prime is 8403917. The reversal of 8403913 is 3193048.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 8403913 - 2¹³ = 8395721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8403917) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1945 + ... + 4537.

It is an arithmetic number, because the mean of its divisors is an integer number (1203616).

Almost surely, 2^8403913 is an apocalyptic number.

It is an amenable number.

8403913 is a deficient number, since it is larger than the sum of its proper divisors (1225015).

8403913 is a wasteful number, since it uses less digits than its factorization.

8403913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3063.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 8403913 is about 2898.9503272736. The cubic root of 8403913 is about 203.3108312165.

It can be divided in two parts, 8403 and 913, that added together give a triangular number (9316 = T₁₃₆).

The spelling of 8403913 in words is "eight million, four hundred three thousand, nine hundred thirteen".