1630964 has 6 divisors (see below), whose sum is σ = 2854194. Its totient is φ = 815480.

The previous prime is 1630943. The next prime is 1630987. The reversal of 1630964 is 4690361.

It can be written as a sum of positive squares in only one way, i.e., 1582564 + 48400 = 1258^2 + 220^2 .

It is a plaindrome in base 15.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 203867 + ... + 203874.

It is an arithmetic number, because the mean of its divisors is an integer number (475699).

2^1630964 is an apocalyptic number.

It is an amenable number.

1630964 is a deficient number, since it is larger than the sum of its proper divisors (1223230).

1630964 is a wasteful number, since it uses less digits than its factorization.

1630964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407745 (or 407743 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 29.

The square root of 1630964 is about 1277.0920092147. The cubic root of 1630964 is about 117.7103881195.

The spelling of 1630964 in words is "one million, six hundred thirty thousand, nine hundred sixty-four".