63275391 has 8 divisors (see below), whose sum is σ = 93741360. Its totient is φ = 42183576.

The previous prime is 63275363. The next prime is 63275417. The reversal of 63275391 is 19357236.

It is not a de Polignac number, because 63275391 - 2¹³ = 63267199 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63275321) 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, 1171740 + ... + 1171793.

It is an arithmetic number, because the mean of its divisors is an integer number (11717670).

Almost surely, 2^63275391 is an apocalyptic number.

63275391 is a deficient number, since it is larger than the sum of its proper divisors (30465969).

63275391 is a wasteful number, since it uses less digits than its factorization.

63275391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2343542 (or 2343536 counting only the distinct ones).

The product of its digits is 34020, while the sum is 36.

The square root of 63275391 is about 7954.5830186126. The cubic root of 63275391 is about 398.4846645621.

The spelling of 63275391 in words is "sixty-three million, two hundred seventy-five thousand, three hundred ninety-one".