663069937 has 4 divisors (see below), whose sum is σ = 677177856. Its totient is φ = 648962020.

The previous prime is 663069931. The next prime is 663069971. The reversal of 663069937 is 739960366.

663069937 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 663069937 - 2³ = 663069929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (663069931) 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, 7053889 + ... + 7053982.

It is an arithmetic number, because the mean of its divisors is an integer number (169294464).

Almost surely, 2^663069937 is an apocalyptic number.

It is an amenable number.

663069937 is a deficient number, since it is larger than the sum of its proper divisors (14107919).

663069937 is a wasteful number, since it uses less digits than its factorization.

663069937 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14107918.

The product of its (nonzero) digits is 1102248, while the sum is 49.

The square root of 663069937 is about 25750.1444073621. The cubic root of 663069937 is about 872.0066145901.

It can be divided in two parts, 6630 and 69937, that added together give a palindrome (76567).

The spelling of 663069937 in words is "six hundred sixty-three million, sixty-nine thousand, nine hundred thirty-seven".