63620966 has 4 divisors (see below), whose sum is σ = 95431452. Its totient is φ = 31810482.

The previous prime is 63620941. The next prime is 63620993. The reversal of 63620966 is 66902636.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15905240 + ... + 15905243.

It is an arithmetic number, because the mean of its divisors is an integer number (23857863).

Almost surely, 2^63620966 is an apocalyptic number.

63620966 is a deficient number, since it is larger than the sum of its proper divisors (31810486).

63620966 is a wasteful number, since it uses less digits than its factorization.

63620966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31810485.

The product of its (nonzero) digits is 69984, while the sum is 38.

The square root of 63620966 is about 7976.2751958543. The cubic root of 63620966 is about 399.2087817997.

The spelling of 63620966 in words is "sixty-three million, six hundred twenty thousand, nine hundred sixty-six".