63690474 has 8 divisors (see below), whose sum is σ = 127380960. Its totient is φ = 21230156.

The previous prime is 63690463. The next prime is 63690481. The reversal of 63690474 is 47409636.

It is a sphenic number, since it is the product of 3 distinct primes.

63690474 is an admirable number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5307534 + ... + 5307545.

It is an arithmetic number, because the mean of its divisors is an integer number (15922620).

Almost surely, 2^63690474 is an apocalyptic number.

63690474 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

63690474 is a wasteful number, since it uses less digits than its factorization.

63690474 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10615084.

The product of its (nonzero) digits is 108864, while the sum is 39.

The square root of 63690474 is about 7980.6311780460. The cubic root of 63690474 is about 399.3541117991.

The spelling of 63690474 in words is "sixty-three million, six hundred ninety thousand, four hundred seventy-four".