63957242 has 4 divisors (see below), whose sum is σ = 95935866. Its totient is φ = 31978620.

The previous prime is 63957203. The next prime is 63957263. The reversal of 63957242 is 24275936.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 61763881 + 2193361 = 7859^2 + 1481^2 .

It is a junction number, because it is equal to n+sod(n) for n = 63957196 and 63957205.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15989309 + ... + 15989312.

Almost surely, 2^63957242 is an apocalyptic number.

63957242 is a deficient number, since it is larger than the sum of its proper divisors (31978624).

63957242 is a wasteful number, since it uses less digits than its factorization.

63957242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31978623.

The product of its digits is 90720, while the sum is 38.

The square root of 63957242 is about 7997.3271785016. The cubic root of 63957242 is about 399.9109009882.

The spelling of 63957242 in words is "sixty-three million, nine hundred fifty-seven thousand, two hundred forty-two".