63411709 has 4 divisors (see below), whose sum is σ = 65457280. Its totient is φ = 61366140.

The previous prime is 63411697. The next prime is 63411749. The reversal of 63411709 is 90711436.

It is a happy number.

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 63411709 - 2¹⁹ = 62887421 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31), and also a Moran number because the ratio is a prime number: 2045539 = 63411709 / (6 + 3 + 4 + 1 + 1 + 7 + 0 + 9).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63411749) 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, 1022739 + ... + 1022800.

It is an arithmetic number, because the mean of its divisors is an integer number (16364320).

Almost surely, 2^63411709 is an apocalyptic number.

It is an amenable number.

63411709 is a deficient number, since it is larger than the sum of its proper divisors (2045571).

63411709 is a wasteful number, since it uses less digits than its factorization.

63411709 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2045570.

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 63411709 is about 7963.1469281937. The cubic root of 63411709 is about 398.7706191779.

The spelling of 63411709 in words is "sixty-three million, four hundred eleven thousand, seven hundred nine".