1003673401 has 4 divisors (see below), whose sum is σ = 1003924852. Its totient is φ = 1003421952.

The previous prime is 1003673369. The next prime is 1003673413. The reversal of 1003673401 is 1043763001.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 743980176 + 259693225 = 27276^2 + 16115^2 .

It is a cyclic number.

It is not a de Polignac number, because 1003673401 - 2⁵ = 1003673369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1003673431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 119640 + ... + 127753.

It is an arithmetic number, because the mean of its divisors is an integer number (250981213).

Almost surely, 2^1003673401 is an apocalyptic number.

It is an amenable number.

1003673401 is a deficient number, since it is larger than the sum of its proper divisors (251451).

1003673401 is an equidigital number, since it uses as much as digits as its factorization.

1003673401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 251450.

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 1003673401 is about 31680.8049297994. The cubic root of 1003673401 is about 1001.2229707329. Note that the first 3 decimals are identical.

The spelling of 1003673401 in words is "one billion, three million, six hundred seventy-three thousand, four hundred one".