87397238 has 8 divisors (see below), whose sum is σ = 138807432. Its totient is φ = 41128096.

The previous prime is 87397157. The next prime is 87397253. The reversal of 87397238 is 83279378.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 87397192 and 87397201.

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, 1285220 + ... + 1285287.

It is an arithmetic number, because the mean of its divisors is an integer number (17350929).

Almost surely, 2^87397238 is an apocalyptic number.

87397238 is a deficient number, since it is larger than the sum of its proper divisors (51410194).

87397238 is a wasteful number, since it uses less digits than its factorization.

87397238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2570526.

The product of its digits is 508032, while the sum is 47.

The square root of 87397238 is about 9348.6489933038. The cubic root of 87397238 is about 443.7781369979.

The spelling of 87397238 in words is "eighty-seven million, three hundred ninety-seven thousand, two hundred thirty-eight".