671354803 has 24 divisors (see below), whose sum is σ = 818643744. Its totient is φ = 539212800.

The previous prime is 671354791. The next prime is 671354819. The reversal of 671354803 is 308453176.

It is not a de Polignac number, because 671354803 - 2²¹ = 669257651 is a prime.

It is a super-2 number, since 2×671354803² = 901434543022337618, which contains 22 as substring.

It is a hoax number, since the sum of its digits (37) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (671357803) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 567873 + ... + 569053.

It is an arithmetic number, because the mean of its divisors is an integer number (34110156).

Almost surely, 2^671354803 is an apocalyptic number.

671354803 is a deficient number, since it is larger than the sum of its proper divisors (147288941).

671354803 is a wasteful number, since it uses less digits than its factorization.

671354803 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1503 (or 1486 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 37.

The square root of 671354803 is about 25910.5152978477. The cubic root of 671354803 is about 875.6234155361.

It can be divided in two parts, 6713 and 54803, that added together give a palindrome (61516).

The spelling of 671354803 in words is "six hundred seventy-one million, three hundred fifty-four thousand, eight hundred three".