1263964 has 24 divisors (see below), whose sum is σ = 2414720. Its totient is φ = 575424.

The previous prime is 1263961. The next prime is 1263973. The reversal of 1263964 is 4693621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1263961) 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, 5557 + ... + 5779.

2^1263964 is an apocalyptic number.

It is an amenable number.

1263964 is a deficient number, since it is larger than the sum of its proper divisors (1150756).

1263964 is a wasteful number, since it uses less digits than its factorization.

1263964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 349 (or 347 counting only the distinct ones).

The product of its digits is 7776, while the sum is 31.

The square root of 1263964 is about 1124.2615354089. The cubic root of 1263964 is about 108.1213770267.

The spelling of 1263964 in words is "one million, two hundred sixty-three thousand, nine hundred sixty-four".