63508697 has 16 divisors (see below), whose sum is σ = 77552640. Its totient is φ = 50794128.

The previous prime is 63508657. The next prime is 63508723. The reversal of 63508697 is 79680536.

It is not a de Polignac number, because 63508697 - 2⁶ = 63508633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63508657) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5348 + ... + 12474.

It is an arithmetic number, because the mean of its divisors is an integer number (4847040).

Almost surely, 2^63508697 is an apocalyptic number.

63508697 is a gapful number since it is divisible by the number (67) formed by its first and last digit.

It is an amenable number.

63508697 is a deficient number, since it is larger than the sum of its proper divisors (14043943).

63508697 is a wasteful number, since it uses less digits than its factorization.

63508697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7220.

The product of its (nonzero) digits is 272160, while the sum is 44.

The square root of 63508697 is about 7969.2344048848. The cubic root of 63508697 is about 398.9738217300.

The spelling of 63508697 in words is "sixty-three million, five hundred eight thousand, six hundred ninety-seven".