1031604 has 24 divisors (see below), whose sum is σ = 2751168. Its totient is φ = 294720.

The previous prime is 1031593. The next prime is 1031609. The reversal of 1031604 is 4061301.

1031604 = T₁₃₂ + T₁₃₃ + ... + T₂₀₃.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1031609) 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, 6057 + ... + 6224.

It is an arithmetic number, because the mean of its divisors is an integer number (114632).

2^1031604 is an apocalyptic number.

1031604 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1031604 is an abundant number, since it is smaller than the sum of its proper divisors (1719564).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1031604 is a wasteful number, since it uses less digits than its factorization.

1031604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12295 (or 12293 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 1031604 is about 1015.6790831754. The cubic root of 1031604 is about 101.0425595887.

Adding to 1031604 its reverse (4061301), we get a palindrome (5092905).

The spelling of 1031604 in words is "one million, thirty-one thousand, six hundred four".