63961069 has 4 divisors (see below), whose sum is σ = 64558944. Its totient is φ = 63363196.

The previous prime is 63961061. The next prime is 63961103. The reversal of 63961069 is 96016936.

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 63961069 - 2³ = 63961061 is a prime.

It is a super-2 number, since 2×63961069² = 8182036695245522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63961061) 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, 298777 + ... + 298990.

It is an arithmetic number, because the mean of its divisors is an integer number (16139736).

Almost surely, 2^63961069 is an apocalyptic number.

It is an amenable number.

63961069 is a deficient number, since it is larger than the sum of its proper divisors (597875).

63961069 is a wasteful number, since it uses less digits than its factorization.

63961069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 597874.

The product of its (nonzero) digits is 52488, while the sum is 40.

The square root of 63961069 is about 7997.5664423623. The cubic root of 63961069 is about 399.9188772989.

The spelling of 63961069 in words is "sixty-three million, nine hundred sixty-one thousand, sixty-nine".