63674577 has 12 divisors (see below), whose sum is σ = 92335620. Its totient is φ = 42283008.

The previous prime is 63674573. The next prime is 63674579. The reversal of 63674577 is 77547636.

63674577 is a `hidden beast` number, since 6 + 3 + 6 + 74 + 577 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 47320641 + 16353936 = 6879^2 + 4044^2 .

It is not a de Polignac number, because 63674577 - 2² = 63674573 is a prime.

It is a super-2 number, since 2×63674577² = 8108903512257858, which contains 22 as substring.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (63674573) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11452 + ... + 16077.

It is an arithmetic number, because the mean of its divisors is an integer number (7694635).

Almost surely, 2^63674577 is an apocalyptic number.

It is an amenable number.

63674577 is a deficient number, since it is larger than the sum of its proper divisors (28661043).

63674577 is a wasteful number, since it uses less digits than its factorization.

63674577 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27792 (or 27789 counting only the distinct ones).

The product of its digits is 740880, while the sum is 45.

The square root of 63674577 is about 7979.6351420350. The cubic root of 63674577 is about 399.3208830697.

The spelling of 63674577 in words is "sixty-three million, six hundred seventy-four thousand, five hundred seventy-seven".