65887238 has 8 divisors (see below), whose sum is σ = 98865480. Its totient is φ = 32932080.

The previous prime is 65887147. The next prime is 65887243. The reversal of 65887238 is 83278856.

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

It is a super-2 number, since 2×65887238² = 8682256262537288, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 65887192 and 65887201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7178 + ... + 13538.

It is an arithmetic number, because the mean of its divisors is an integer number (12358185).

Almost surely, 2^65887238 is an apocalyptic number.

65887238 is a deficient number, since it is larger than the sum of its proper divisors (32978242).

65887238 is a wasteful number, since it uses less digits than its factorization.

65887238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11542.

The product of its digits is 645120, while the sum is 47.

The square root of 65887238 is about 8117.0954164652. The cubic root of 65887238 is about 403.8937202055.

The spelling of 65887238 in words is "sixty-five million, eight hundred eighty-seven thousand, two hundred thirty-eight".