63480997 has 4 divisors (see below), whose sum is σ = 65029356. Its totient is φ = 61932640.

The previous prime is 63480979. The next prime is 63481001. The reversal of 63480997 is 79908436.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 24117921 + 39363076 = 4911^2 + 6274^2 .

It is a cyclic number.

It is not a de Polignac number, because 63480997 - 2⁷ = 63480869 is a prime.

It is a super-2 number, since 2×63480997² = 8059673960228018, 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 (63480917) 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, 774118 + ... + 774199.

It is an arithmetic number, because the mean of its divisors is an integer number (16257339).

Almost surely, 2^63480997 is an apocalyptic number.

It is an amenable number.

63480997 is a deficient number, since it is larger than the sum of its proper divisors (1548359).

63480997 is a wasteful number, since it uses less digits than its factorization.

63480997 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1548358.

The product of its (nonzero) digits is 326592, while the sum is 46.

The square root of 63480997 is about 7967.4962817688. The cubic root of 63480997 is about 398.9158077228.

The spelling of 63480997 in words is "sixty-three million, four hundred eighty thousand, nine hundred ninety-seven".