1031916 has 24 divisors (see below), whose sum is σ = 2432304. Its totient is φ = 340480.

The previous prime is 1031911. The next prime is 1031923. The reversal of 1031916 is 6191301.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1031892 and 1031901.

It is not an unprimeable number, because it can be changed into a prime (1031911) 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, 976 + ... + 1736.

It is an arithmetic number, because the mean of its divisors is an integer number (101346).

2^1031916 is an apocalyptic number.

It is an amenable number.

1031916 is an abundant number, since it is smaller than the sum of its proper divisors (1400388).

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

1031916 is a wasteful number, since it uses less digits than its factorization.

1031916 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 881 (or 879 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 21.

The square root of 1031916 is about 1015.8326633851. The cubic root of 1031916 is about 101.0527450542.

The spelling of 1031916 in words is "one million, thirty-one thousand, nine hundred sixteen".