63770944 has 28 divisors (see below), whose sum is σ = 133991604. Its totient is φ = 30009344.

The previous prime is 63770939. The next prime is 63770951. The reversal of 63770944 is 44907736.

It can be written as a sum of positive squares in 2 ways, for example, as 59105344 + 4665600 = 7688^2 + 2160^2 .

It is a super-2 number, since 2×63770944² = 8133466597302272, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 63770897 and 63770906.

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, 28219 + ... + 30394.

Almost surely, 2^63770944 is an apocalyptic number.

63770944 is a gapful number since it is divisible by the number (64) formed by its first and last digit.

It is an amenable number.

63770944 is an abundant number, since it is smaller than the sum of its proper divisors (70220660).

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

63770944 is a wasteful number, since it uses less digits than its factorization.

63770944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58642 (or 58632 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 40.

The square root of 63770944 is about 7985.6711677855. The cubic root of 63770944 is about 399.5222295657.

The spelling of 63770944 in words is "sixty-three million, seven hundred seventy thousand, nine hundred forty-four".