1009407903 has 24 divisors (see below), whose sum is σ = 1558725504. Its totient is φ = 569106240.

The previous prime is 1009407887. The next prime is 1009407913. The reversal of 1009407903 is 3097049001.

It is not a de Polignac number, because 1009407903 - 2⁴ = 1009407887 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1009407913) 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, 1326043 + ... + 1326803.

It is an arithmetic number, because the mean of its divisors is an integer number (64946896).

Almost surely, 2^1009407903 is an apocalyptic number.

1009407903 is a deficient number, since it is larger than the sum of its proper divisors (549317601).

1009407903 is an frugal number, since it uses more digits than its factorization.

1009407903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1615 (or 854 counting only the distinct ones).

The product of its (nonzero) digits is 6804, while the sum is 33.

The square root of 1009407903 is about 31771.1803841154. The cubic root of 1009407903 is about 1003.1261844533.

The spelling of 1009407903 in words is "one billion, nine million, four hundred seven thousand, nine hundred three".