63797739 has 4 divisors (see below), whose sum is σ = 85063656. Its totient is φ = 42531824.

The previous prime is 63797677. The next prime is 63797771. The reversal of 63797739 is 93779736.

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

It is a cyclic number.

It is not a de Polignac number, because 63797739 - 2⁸ = 63797483 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 63797691 and 63797700.

It is not an unprimeable number, because it can be changed into a prime (63797779) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10632954 + ... + 10632959.

It is an arithmetic number, because the mean of its divisors is an integer number (21265914).

Almost surely, 2^63797739 is an apocalyptic number.

63797739 is a deficient number, since it is larger than the sum of its proper divisors (21265917).

63797739 is a wasteful number, since it uses less digits than its factorization.

63797739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21265916.

The product of its digits is 1500282, while the sum is 51.

The square root of 63797739 is about 7987.3486840127. The cubic root of 63797739 is about 399.5781782390.

The spelling of 63797739 in words is "sixty-three million, seven hundred ninety-seven thousand, seven hundred thirty-nine".