63916369 has 8 divisors (see below), whose sum is σ = 69818112. Its totient is φ = 58029840.

The previous prime is 63916351. The next prime is 63916373. The reversal of 63916369 is 96361936.

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

It is not a de Polignac number, because 63916369 - 2²⁵ = 30361937 is a prime.

It is a super-2 number, since 2×63916369² = 8170604452288322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63916309) 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, 6127 + ... + 12859.

It is an arithmetic number, because the mean of its divisors is an integer number (8727264).

Almost surely, 2^63916369 is an apocalyptic number.

It is an amenable number.

63916369 is a deficient number, since it is larger than the sum of its proper divisors (5901743).

63916369 is a wasteful number, since it uses less digits than its factorization.

63916369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7607.

The product of its digits is 157464, while the sum is 43.

The square root of 63916369 is about 7994.7713538287. The cubic root of 63916369 is about 399.8256928035.

The spelling of 63916369 in words is "sixty-three million, nine hundred sixteen thousand, three hundred sixty-nine".