1003947401 has 16 divisors (see below), whose sum is σ = 1072134144. Its totient is φ = 937893264.

The previous prime is 1003947389. The next prime is 1003947419. The reversal of 1003947401 is 1047493001.

It is not a de Polignac number, because 1003947401 - 2⁶ = 1003947337 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1003947701) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 893426 + ... + 894548.

It is an arithmetic number, because the mean of its divisors is an integer number (67008384).

Almost surely, 2^1003947401 is an apocalyptic number.

It is an amenable number.

1003947401 is a deficient number, since it is larger than the sum of its proper divisors (68186743).

1003947401 is a wasteful number, since it uses less digits than its factorization.

1003947401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2020.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 1003947401 is about 31685.1290197783. The cubic root of 1003947401 is about 1001.3140727897.

The spelling of 1003947401 in words is "one billion, three million, nine hundred forty-seven thousand, four hundred one".