63893697 has 32 divisors (see below), whose sum is σ = 102604800. Its totient is φ = 35315280.

The previous prime is 63893689. The next prime is 63893707. The reversal of 63893697 is 79639836.

It is a happy number.

It is not a de Polignac number, because 63893697 - 2³ = 63893689 is a prime.

It is not an unprimeable number, because it can be changed into a prime (63893597) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 30898 + ... + 32900.

It is an arithmetic number, because the mean of its divisors is an integer number (3206400).

Almost surely, 2^63893697 is an apocalyptic number.

It is an amenable number.

63893697 is a deficient number, since it is larger than the sum of its proper divisors (38711103).

63893697 is a wasteful number, since it uses less digits than its factorization.

63893697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2058 (or 2044 counting only the distinct ones).

The product of its digits is 1469664, while the sum is 51.

The square root of 63893697 is about 7993.3533013373. The cubic root of 63893697 is about 399.7784126870.

The spelling of 63893697 in words is "sixty-three million, eight hundred ninety-three thousand, six hundred ninety-seven".