63690697 has 8 divisors (see below), whose sum is σ = 74482496. Its totient is φ = 53322192.

The previous prime is 63690673. The next prime is 63690713. The reversal of 63690697 is 79609636.

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

It is a de Polignac number, because none of the positive numbers 2^k-63690697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63690667) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 105498 + ... + 106099.

It is an arithmetic number, because the mean of its divisors is an integer number (9310312).

Almost surely, 2^63690697 is an apocalyptic number.

It is an amenable number.

63690697 is a deficient number, since it is larger than the sum of its proper divisors (10791799).

63690697 is a wasteful number, since it uses less digits than its factorization.

63690697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211647.

The product of its (nonzero) digits is 367416, while the sum is 46.

The square root of 63690697 is about 7980.6451493598. The cubic root of 63690697 is about 399.3545778859.

The spelling of 63690697 in words is "sixty-three million, six hundred ninety thousand, six hundred ninety-seven".