63873274 has 4 divisors (see below), whose sum is σ = 95809914. Its totient is φ = 31936636.

The previous prime is 63873263. The next prime is 63873289. The reversal of 63873274 is 47237836.

It is a happy number.

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., 47817225 + 16056049 = 6915^2 + 4007^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an unprimeable number.

It is an upside-down number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15968317 + ... + 15968320.

Almost surely, 2^63873274 is an apocalyptic number.

63873274 is a deficient number, since it is larger than the sum of its proper divisors (31936640).

63873274 is a wasteful number, since it uses less digits than its factorization.

63873274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31936639.

The product of its digits is 169344, while the sum is 40.

The square root of 63873274 is about 7992.0757003422. The cubic root of 63873274 is about 399.7358130516.

The spelling of 63873274 in words is "sixty-three million, eight hundred seventy-three thousand, two hundred seventy-four".