63402471 has 48 divisors (see below), whose sum is σ = 104911872. Its totient is φ = 36547200.

The previous prime is 63402463. The next prime is 63402473. The reversal of 63402471 is 17420436.

63402471 is a `hidden beast` number, since 634 + 0 + 24 + 7 + 1 = 666.

It is not a de Polignac number, because 63402471 - 2³ = 63402463 is a prime.

It is a super-3 number, since 3×63402471³ (a number of 24 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63402473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 223896 + ... + 224178.

It is an arithmetic number, because the mean of its divisors is an integer number (2185664).

Almost surely, 2^63402471 is an apocalyptic number.

63402471 is a deficient number, since it is larger than the sum of its proper divisors (41509401).

63402471 is a wasteful number, since it uses less digits than its factorization.

63402471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 404 (or 401 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 27.

The square root of 63402471 is about 7962.5668600019. The cubic root of 63402471 is about 398.7512535542.

The spelling of 63402471 in words is "sixty-three million, four hundred two thousand, four hundred seventy-one".