1631064 has 16 divisors (see below), whose sum is σ = 4077720. Its totient is φ = 543680.

The previous prime is 1631059. The next prime is 1631101. The reversal of 1631064 is 4601361.

It is a self number, because there is not a number n which added to its sum of digits gives 1631064.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33957 + ... + 34004.

2^1631064 is an apocalyptic number.

It is an amenable number.

1631064 is an abundant number, since it is smaller than the sum of its proper divisors (2446656).

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

1631064 is a wasteful number, since it uses less digits than its factorization.

1631064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67970 (or 67966 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

The square root of 1631064 is about 1277.1311600615. The cubic root of 1631064 is about 117.7127938129.

The spelling of 1631064 in words is "one million, six hundred thirty-one thousand, sixty-four".