63409379 has 8 divisors (see below), whose sum is σ = 71043888. Its totient is φ = 56086560.

The previous prime is 63409373. The next prime is 63409397. The reversal of 63409379 is 97390436.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 63409379 - 2⁸ = 63409123 is a prime.

It is a Duffinian number.

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (63409373) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77492 + ... + 78305.

It is an arithmetic number, because the mean of its divisors is an integer number (8880486).

Almost surely, 2^63409379 is an apocalyptic number.

63409379 is a deficient number, since it is larger than the sum of its proper divisors (7634509).

63409379 is a wasteful number, since it uses less digits than its factorization.

63409379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155845.

The product of its (nonzero) digits is 122472, while the sum is 41.

The square root of 63409379 is about 7963.0006279040. Note that the first 3 decimals coincide. The cubic root of 63409379 is about 398.7657349752.

The spelling of 63409379 in words is "sixty-three million, four hundred nine thousand, three hundred seventy-nine".