285068631 has 8 divisors (see below), whose sum is σ = 402449904. Its totient is φ = 178866560.

The previous prime is 285068573. The next prime is 285068633. The reversal of 285068631 is 136860582.

It is a happy number.

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 285068631 - 2¹⁴ = 285052247 is a prime.

It is a super-2 number, since 2×285068631² = 162528248760428322, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 285068631.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (285068633) 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, 2794740 + ... + 2794841.

It is an arithmetic number, because the mean of its divisors is an integer number (50306238).

Almost surely, 2^285068631 is an apocalyptic number.

285068631 is a deficient number, since it is larger than the sum of its proper divisors (117381273).

285068631 is a wasteful number, since it uses less digits than its factorization.

285068631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5589601.

The product of its (nonzero) digits is 69120, while the sum is 39.

The square root of 285068631 is about 16883.9755685680. The cubic root of 285068631 is about 658.1372568376.

The spelling of 285068631 in words is "two hundred eighty-five million, sixty-eight thousand, six hundred thirty-one".