403348947 has 8 divisors (see below), whose sum is σ = 538139280. Its totient is φ = 268728960.

The previous prime is 403348943. The next prime is 403348973. The reversal of 403348947 is 749843304.

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

It is not a de Polignac number, because 403348947 - 2² = 403348943 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 403348899 and 403348908.

It is not an unprimeable number, because it can be changed into a prime (403348943) 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, 36954 + ... + 46607.

It is an arithmetic number, because the mean of its divisors is an integer number (67267410).

Almost surely, 2^403348947 is an apocalyptic number.

403348947 is a deficient number, since it is larger than the sum of its proper divisors (134790333).

403348947 is a wasteful number, since it uses less digits than its factorization.

403348947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85173.

The product of its (nonzero) digits is 290304, while the sum is 42.

The square root of 403348947 is about 20083.5491634322. The cubic root of 403348947 is about 738.8568586924.

The spelling of 403348947 in words is "four hundred three million, three hundred forty-eight thousand, nine hundred forty-seven".