63400285 has 8 divisors (see below), whose sum is σ = 81932760. Its totient is φ = 46818624.

The previous prime is 63400261. The next prime is 63400319. The reversal of 63400285 is 58200436.

It can be written as a sum of positive squares in 4 ways, for example, as 86436 + 63313849 = 294^2 + 7957^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 63400285 - 2²¹ = 61303133 is a prime.

It is a super-2 number, since 2×63400285² = 8039192276162450, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 487630 + ... + 487759.

It is an arithmetic number, because the mean of its divisors is an integer number (10241595).

Almost surely, 2^63400285 is an apocalyptic number.

63400285 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

63400285 is a deficient number, since it is larger than the sum of its proper divisors (18532475).

63400285 is a wasteful number, since it uses less digits than its factorization.

63400285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 975407.

The product of its (nonzero) digits is 5760, while the sum is 28.

The square root of 63400285 is about 7962.4295915254. The cubic root of 63400285 is about 398.7466707662.

The spelling of 63400285 in words is "sixty-three million, four hundred thousand, two hundred eighty-five".